Q. 3 D5.0( 1 Vote )

Prove the followi

Answer :

Consider LHS,


LHS = +


We know that tan (90° - θ) = cotθ.


+ = +


=


We know that (a + b)2 = a2 + 2ab + b2.


+ =


We know that cot2θ + 1 = cosec2θ.


+ =


=


=


=


We know that = cosecθ and = cotθ.


+ =


=


We know that = secθ.


+ = 2secθ = RHS


Hence proved.


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