Question

Verify the identity.

cot((x - (pi/2)) = -tan x

Answer 1

u mean prove?

Answer 2

Yes, it means the same thing. n_n

Answer 3

cot(p/2-x)=tan x u knw that?

Answer 4

Yes.

Answer 5

I don't understand how "pi/2" and "x" got switched around, however.

Answer 6

yep knw u see the cot function is an odd function so

cot(-x)=-cot x

Answer 7

that is the reversal happened here

Answer 8

so obviosly - sign comes to left also

Answer 9

hence proved :)

Answer 10

Okay, thanks. How do I show work to prove it?