Math, asked by anandkumar87822, 9 months ago

cos 20° + cos 40° + cos 60° +.................+ cos 180°=?

Answers

Answered by pukultanvi4444

0

Answer:

cos(20)+cos(40)+cos(60)+x+cos(180)=y

Simplifies to:

x−1.809729=y

Step-by-step explanation:

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Answered by DarshilThakkar

0

Answer:

Answer is -1. cos 180 = -1

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