Q. 48 E5.0( 2 Votes )

Evaluate the following

sec41° sin49° + cos49° cosec 41°

Answer :

We know that

sec θ = cosec (90° - θ) and cos θ = sin (90° - θ)


Cosec (90° – 41°) sin 49° + sin (90° – 49°) cosec 41°


= cosec 49° sin 49° + sin 41° cosec 41°



= 1+ 1


= 2


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