Q. 444.0( 4 Votes )

Find the value off the following:

Answer :

[ cot θ = tan (90° - θ), cos θ = sin (90° - θ) and Sin θ = cos (90° - θ)]

[ 1+tan2 θ =sec2 θ and cos2 θ +sin2θ = 1]

= 1 + 1

= 2

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