Express cos 75 + cot 75 in terms of angles between zero degree and 30 degrees
Answers
Answered by
1
cos 75 + cot 75
cos (90 - 15 ) + cot (90 - 15 )
we know that
{{cos (90 - 15 ) = sin 15 & cot (90-15) = cosec 15}}
so sin 15 + cosec 15
cos (90 - 15 ) + cot (90 - 15 )
we know that
{{cos (90 - 15 ) = sin 15 & cot (90-15) = cosec 15}}
so sin 15 + cosec 15
Similar questions