Urgent help please

We have moved!

We want to extend a heartfelt thanks to everyone who has made the original ATAR Notes forum such a helpful, warm and welcoming place. Your contributions are appreciated and we will be leaving the forum in archive mode for posterity.

Please visit our new website and discussion area.

Welcome, Guest. Please login or register.

Pages: [1] Go Down

Author Topic: Urgent help please (Read 651 times) Tweet Share

0 Members and 1 Guest are viewing this topic.

VCE123456789

Victorian
Forum Obsessive
Posts: 263
Respect: +1

Urgent help please

« on: March 20, 2011, 11:28:44 pm »

1. Find all the values of x that make the following inequaliteis hold:

-pie/4<arcsin(3x)<equal to pie/3

Please can anyone show me how to do this with working.

Thanks

Logged

luken93

Victorian
ATAR Notes Legend
Posts: 3060
Respect: +114

Re: Urgent help please

« Reply #1 on: March 21, 2011, 07:37:02 am »

$\frac{-\pi}{4} <arcsin(3x) \leq \frac{\pi}{3}$

$sin(\frac{-\pi}{4})<3x \leq sin(\frac{\pi}{3})$

$\frac{-1}{\sqrt{2}}<3x \leq \frac{ \sqrt{3} }{2}$

$\frac{-\sqrt{2}}{2}<3x \leq \frac{ \sqrt{3} }{2}$

$\frac{-\sqrt{2}}{6}<x \leq \frac{ \sqrt{3}}{6}$

« Last Edit: March 21, 2011, 07:38:58 am by luken93 »

Logged

2010: Business Management [47]

2012: MBBS I @ Monash

Search the forums now!

We have moved!

Author Topic: Urgent help please (Read 651 times) Tweet Share

VCE123456789

Urgent help please

luken93

Re: Urgent help please

Recent Posts

User:
Password: