Math, asked by sruthi241, 9 months ago

if ABCD is a quadrilateral then cos(A+B/2)+cos(C+D/2)==

Answers

Answered by anirudrajodha

0

6/=561344582,"=55-/6,:$6680634066

Answered by pljakhmola8218

2

Answer:

by using formula

cos a +cosb=2cos(a+b)cos(a-b)

than ans is 0

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