Math, asked by ravi151, 1 year ago

Sin58 sin 13 + cos 58 cos13

Answers

Answered by Puja143
3
= 1/2(2sin58sin13 + 2cos58cos13)
= 1/2(cos45 - cos71 + cos45 + cos71)
= 1/2(1√2 + 1√2)
= 1/2 * 2√2
= 1√2 ans
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