Trig proofs with Pythagorean Identities.

To prove:

Solution:

Multiply first term by and second term by .

Using the identity:

Denominators are same, you can subtract the fractions.

Using the identity:

Using the identity:

        ------------ (1)

Using the identity:

        ------------ (2)

Equation (1) = Equation (2)

LHS = RHS

Hence proved.

mk./km: lm

step-by-step explanation:

,mlmlm

; mk

lk

id

step-by-step explanation:

idk

idk

i know the way

and

idk