Math, asked by avinash20, 1 year ago

Cos52cos68cos172=0 please solve this very argent

Answers

Answered by bhagatpriyanshu1

4

cos52+cos68+cos172
2cos(52/2 + 68/2) cos(68/2-52/2) + cos172
2cos60cos8 +cos172
2*1/2 cos8 + cos(180-8)
cos8-cos8=0

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