Question

please help me ...verify the identity and justify each step????

1.Verify the identity cot(θ-( π/2)= -tan θ


2. Verify the identity tan θ + cot θ =1/sin θ cosθ

Answer 1

you on?

Answer 2

i'm on Now

Answer 3

i guess this time he's not

Answer 4

yeah guess not.

Answer 5

for second one write tan and cot in terms of sin and cos
and add the fractions

Answer 6

1. cot(theta-90)= cot(-90+theta)= -cot(90+theta)= -tan theta
hence lhs=rhs...so proved
2. sin theta/cos theta + cos theta/ sin theta, taking lcm, sin^2 theta+ cos^theta/sin theta cos theta= 1/sin theta cos theta
hence lhs=rhs....so proved.

Answer 7

it depends on what you get to use for the first one