Can someone help me with my homework?(adsbygoogle = window.adsbygoogle || []).push({});

It would be great if I could get it back within the next 10 hours.

The sooner the better though. Thanks to anyone who can do these for me.

Working out for first 3 questions would be appreciated.

Fourth question only requires multiple choice answer.

1) If sin(x) = 3/5 and sin(y) = 24/25 and, pi/2 < y < x < pi, find the value of:

a) cos(2x)

b) sin(2x)

c) sin(x-y)

2) Simplify

a) [sin(x)/sin(x)] - [cos(3x)/cos(x)]

b) sin(x)cos(x)cos(2x)

3) Prove that tan(pi/4 + x) - tan(pi/4 - x) = 2tan(2x)

4) If tan(x) = 4/3 and tan(y) = 5/12, then the value of tan(x+y) is:

Multiple Choice:

A. sin(2x)

B. cos(2x)

C. sin(4x)

D. 25/24

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# Math sine homework

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