Mathematical Methods CAS Exam 1 Discussion - How was it??

[Asx4Life]

m=4, a=8 was what I got too
for probability, it was 5/8 and 3/5 right?

can some1 explain domain question please

[AleksIlia]

Good as, found it pretty straightforward, although the last part of the last question took me a while. Got 19 + 3 root 5 for the length, swear that was worth more than 1 mark -.-
                                                                 

[b^3]

Answer was 19+3root5
What did you people say for maximal domain question?   

R\(-8,-2)

Yeeey, because you had to restrict the domain of f(x) right? So that ranf(x)cdomg(x)?

[nacho]

Answer was 19+3root5
What did you people say for maximal domain question?   

R\(-8,-2)

yess!!
BTW
what did you guys get for the coin probability question?

p = ?
I got 3/4 but some of my friends got something else

[AleksIlia]

m=4, a=8 was what I got too
for probability, it was 5/8 and 3/5 right?

can some1 explain domain question please

Yeah that's what I got, pretty sure. For domain the values can both be negative or both be positive or each one could be zero. Thus for both negative less than or equal to 8 and for both positive greater than or equal to 2

[nbhindi]

actually my bad......the i'm think about the x = pi/4 , 11pi/12 question .....yeah ur right the tan theta = 1/2 similar triangles etc....but i don't think i simplified enough

[jane1234]

Oooh I wanna see this paper - this triangle-and-square thing = new cone of death?

Me too! Anyway, chin up guys! Read thushan's original post - this was only worth 22% of your SS. You still have exam 2!

[Asx4Life]

I got 3/4 too

[Water]

Guys, that maximal domain is


(- infinitive, -8] U [-2 , infinitive )


Pretty sure.

[ivslt247]

Good as, found it pretty straightforward, although the last part of the last question took me a while. Got 19 + 3 root 5 for the length, swear that was worth more than 1 mark -.-
                                                                 

i think a lot of people overdid the question O_O or is it just me? i thought all u had to do was sub in the a = 3root 5 into the L equation. at first i also thought, seems hard, but then looked at it and it was only worth 1 mark which led me to the conclusion that u only need to sub it in. cause they dont tell you what theta is unless u took it from the previous question..

[tony3272]

DAMMIT lol... made a couple really careless mistakes...

[Brazzers]

i didn't find it so easy, probably cos i'm dumb. but i reckon i'll do okay.

 

[nacho]

Guys, that maximal domain is


(- infinitive, -8] U [-2 , infinitive )


Pretty sure.

yep ur right

[b^3]

Good as, found it pretty straightforward, although the last part of the last question took me a while. Got 19 + 3 root 5 for the length, swear that was worth more than 1 mark -.-
                                                                 

i think a lot of people overdid the question O_O or is it just me? i thought all u had to do was sub in the a = 3root 5 into the L equation. at first i also thought, seems hard, but then looked at it and it was only worth 1 mark which led me to the conclusion that u only need to sub it in. cause they dont tell you what theta is unless u took it from the previous question..

Yes but it is asking for the maximum L, so you had to take it from the previous questions didn't you, when dl/dtheta =0?

[ashyy05]

This exam was waaay harder even some of the kilbaha ones were easier than this!! =.=