Question

giving off a medal!
Verify the identity:
cot(x-pi/2)=-tan x

Answer 1

hey rose :)

Answer 2

okay bye :)

Answer 3

Oh,I'm sorry I replied late.

Answer 4

Can u plz help me @Iam_indian ?

Answer 5

for u :)

Answer 6

thnku:)

Answer 7

do u know how to solve this prob?

Answer 8

no :'(

Answer 9

It's ok.Thanks anyway:)

Answer 10

@zepdrix can u help me?

Answer 11

@study100

Answer 12

@neoh147 this awesome person got your back!

Answer 13

hahaha=p

Answer 14

cot(x-pi/2)=-tan x
left hand side
= cos(x-pi/2)/sin(x-pi/2)
= [cos x cos (pi/2) + sin x sin (pi/2)]/ [sin x cos (pi/2) -sin (pi/2)cos x]
= (0+sin x)/ (0 - cos x)
=-(sin x/ cos x)
= - tan x
= right hand side (proven#)

note that cos (pi/2)= 0

Answer 15

thnku soooo much @neoh147 :)

Answer 16

welcome @mayaal