#### IceKool15

##### New Member

So I go to Ngo and Sons for 3u maths tutoring... Only just started on trig identity. I need help asap on maths h/w or i will be screwed for tomorrow.

1. Simplify the following

a) tan

^{2}x + cot

^{2}x – sec

^{2}xcosec

^{2}x.

b) (1 - cos

^{2}x)(1 + cos

^{2}x)

2. Prove the following

a) sqrt[(cosec

^{2}x - 1)(1 + tan

^{2}x) = |cosecx|

b) (5secx + 4tanx)

^{2}+ (4secx - 5tanx)

^{2}= 41

plzplzplzplzplz help ASAP @#$!@#$

cheers :'(