Math, asked by deepeshthakur717, 1 year ago

cos40.cosec50=1
please help me this question

Answers

Answered by aman6973
0
cos40×1/sin50
cos40×1/sin (90-40 )
cos40×1/cos40
=1

Answered by Palak230
0

cos40.cosec50=1 LHS: cos (90-50).cosec50  (sin[90theta]=cos theta)= FORMULA sin50.cosec50 1/cosec50×cosec50 (sin theta=1/cosec theta)= FORMULA 1.  RHS: 1 LHS=RHS HENCE PROVED.  HOPE IT HELPS!!

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