Math, asked by AnkushRana6173, 10 months ago

Cos1degree+cos2degree+cos3degree.........cos179degree

Answers

Answered by tejaswisubrahmanyam
1

Answer:

cos 179° = cos(180-1)= -cos1°

in this way cos1, cos 179     cos2, cos178  .......get cancelled

and cos90 remains

so final answer is cos90 = 0

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