Question

Verify the identity.

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

Answer 1

tan(x+pi/2) = (sin(x+pi/2)/(soc(x+pi/2) right?

Answer 2

yea

Answer 3

ummmmm
ahaaa
sin(pi/2 + x) = - cos (x)
and cos (pi/2+x) = sin(x)

Answer 4

how did you get that?

Answer 5

i give you a picture hint