18. Express cos 56° + cot 56° in terms of angles between 0 and 45° – InterviewSolution

1.

18. Express cos 56° + cot 56° in terms of angles between 0 and 45°

Answer»

cos 56+ cot 56= cos (90-34)+ cot (90-34)= sin 34+ tan 34

cos(90-56)+cot(90-56)=sin 34+tan 34

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cos56+ cot56= cos(90-34)+cot(90-34)=sin34+ tan34

The ans will

= sin34 + tan34

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