Question

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Answer 1

Answer:

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Answer 2

Good Morning!!

Tan x = 1/ Cot x

L.H.S

Given Question is

( 1 - Tan² A )

---------------

( Cot² A - 1 )

Replace Cot² A by 1/ Tan² A

(1- Tan² A)

----------------

(1/Tan² A - 1)

(1 - Tan² A ) × Tan² A

-----------------------

( 1 - Tan² A )

Becoz x/y/z = zx/y

= Tan² A = R.H.S

Hence, Proved.