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October 05, 2025, 12:38:24 am
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Author Topic: I feel like helping Respectful people in questions.  (Read 3706 times)  Share 

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Respect

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I feel like helping Respectful people in questions.
« on: March 08, 2011, 07:30:32 pm »
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Such as this,

how do we, solve that using the calculator? .. anyone know how .. SOLVED + more qs below
« Last Edit: March 15, 2011, 09:25:46 pm by Respect »
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burbs

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Re: Help in Specific Question
« Reply #1 on: March 08, 2011, 07:49:14 pm »
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can you clarify if it is y=ln(|x+2|-3) or y=ln(|x+2|)-3.
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Respect

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Re: Help in Specific Question
« Reply #2 on: March 08, 2011, 08:18:44 pm »
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Quote from: burbs on March 08, 2011, 07:49:14 pm
can you clarify if it is y=ln(|x+2|-3) or y=ln(|x+2|)-3.

its alriyt, i solved it :)
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"I am the city of knowledge and Ali is its gate" - Muhammed (pbuh&c)

"The most merciful person is the one who forgives when he is able to revenge"  - Imam Husayn (AS)

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Respect

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #3 on: March 10, 2011, 08:07:37 pm »
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bump
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"I am the city of knowledge and Ali is its gate" - Muhammed (pbuh&c)

"The most merciful person is the one who forgives when he is able to revenge"  - Imam Husayn (AS)

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luken93

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #4 on: March 10, 2011, 08:20:15 pm »
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Use "Factor", it will yield the result:





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Respect

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #5 on: March 10, 2011, 08:51:32 pm »
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Quote from: luken93 on March 10, 2011, 08:20:15 pm
Use "Factor", it will yield the result:







ohh thanks so much luke, also can i only solve this question with a calculator... or it can be done manually, and if so how ..?

and also, can i solve this qs without a caluclator, 2log5 (x-3) =4   .... ? (the 5 is small and under the log.. )
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"I am the city of knowledge and Ali is its gate" - Muhammed (pbuh&c)

"The most merciful person is the one who forgives when he is able to revenge"  - Imam Husayn (AS)

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onur369

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #6 on: March 10, 2011, 09:14:09 pm »
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2log5 (x-3) =4
log5 (x-3)=2
5^2=x-3
25=x-3
x=28
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Respect

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #7 on: March 10, 2011, 09:21:51 pm »
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Quote from: onur369 on March 10, 2011, 09:14:09 pm
2log5 (x-3) =4
log5 (x-3)=2
5^2=x-3
25=x-3
x=28
im impressed onur, i spent 1/2 an hour n coudnt figure it out

do u know how to solve

log4 (x^5) / log4 (cube root x) .. ?

or 5log3 (243) - 6 log2 (1/32) ??
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"The most merciful person is the one who forgives when he is able to revenge"  - Imam Husayn (AS)

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"Seek Knowledge, even if it is as far as China" - Imam Ali

pi

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #8 on: March 10, 2011, 09:30:16 pm »
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5log3 (243) - 6 log2 (1/32)
= 5log3(3^5) - 6log2(2^-5)
= 25log3(3) + 30log2(2)
= 25 + 30
= 55

log4 (x^5) / log4 (cube root x)
= 5log4(x) / (1/3)log4(x)
= 5 / (1/3)
= 15

I think thats right...
« Last Edit: January 02, 2017, 06:06:11 pm by pi »
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onur369

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #9 on: March 10, 2011, 09:34:41 pm »
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pi the second one is x=1, I tried it, I got 15 aswell but tried on the calc and got 1.

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« Last Edit: January 02, 2017, 06:06:27 pm by pi »
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Respect

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #10 on: March 10, 2011, 09:34:59 pm »
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Quote from: Rohitpi on March 10, 2011, 09:30:16 pm
5log3 (243) - 6 log2 (1/32)
= 5log3(3^5) - 6log2(2^-5)
= 25log3(3) + 30log2(2)
= 25 + 30
= 55

log4 (x^5) / log4 (cube root x)
= 5log4(x) / (1/3)log4(x)
= 5 / (1/3)
= 15

I think thats right...

thanks pi, i was joking about b4, ur not annoying ;)

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« Last Edit: January 02, 2017, 06:06:37 pm by pi »
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"The most merciful person is the one who forgives when he is able to revenge"  - Imam Husayn (AS)

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onur369

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #11 on: March 10, 2011, 09:36:37 pm »
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also wtf with the first question, is it even possible to find x when there is log2 and log3, I thought the bases must be the same :/
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pi

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #12 on: March 10, 2011, 09:37:38 pm »
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Quote from: onur369 on March 10, 2011, 09:34:41 pm
Rohit the second one is x=1, I tried it, I got 15 aswell but tried on the calc and got 1.

Just Wolfram Alpha'd it, it is 15.

Quote from: onur369 on March 10, 2011, 09:36:37 pm
also wtf with the first question, is it even possible to find x when there is log2 and log3, I thought the bases must be the same :/
Just make the logs equal to 1, eg log2(2) = 1, then you can work with different bases
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Respect

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #13 on: March 10, 2011, 09:38:57 pm »
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Quote from: pi on March 10, 2011, 09:37:38 pm
Quote from: onur369 on March 10, 2011, 09:34:41 pm
pi the second one is x=1, I tried it, I got 15 aswell but tried on the calc and got 1.

Just Wolfram Alpha'd it, it is 15.

Quote from: onur369 on March 10, 2011, 09:36:37 pm
also wtf with the first question, is it even possible to find x when there is log2 and log3, I thought the bases must be the same :/
Just make the logs equal to 1, eg log2(2) = 1, then you can work with different bases

hehe wolf alpha'd it,... thats like the new google hhaa :D

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« Last Edit: January 02, 2017, 06:07:04 pm by pi »
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"I am the city of knowledge and Ali is its gate" - Muhammed (pbuh&c)

"The most merciful person is the one who forgives when he is able to revenge"  - Imam Husayn (AS)

"To me, death is nothing but happiness and living under tyrants is nothing but living in a hell." - Imam Husayn (AS)

"Whoever sorts out a problem of a believer, God sorts out his difficulties of this world and the here-after." - Imam Husayn (AS)

"Seek Knowledge, even if it is as far as China" - Imam Ali

onur369

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Re: How do you simplify exponential equations using TI -nspire?
« Reply #14 on: March 10, 2011, 09:42:12 pm »
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Lesson of the day: Trust yourself, dont always trust the calc. Lol :s
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