Hey guys,

Due to the lecturer not knowing himself, I don't know how exactly to approach some of the following problems.

Simplify:

1. sec(90°+x)sin(180°+x) + sin(-x)

2. __sin(-x)_ ______1______ __tanx___

sin(180°+x) + secx.sin(90°+x) - cot(90°+x)

Solve for x:

1. 3cot(90°+x) = tanx.sinx

2. tan(90°-x) = sec(3x+10°)cotx

I feel a bit stupid asking, BUT then, the only stupid question is the one not asked!

Thanks in advance for any help and/or advice..

Riaan.