Math, asked by gsampath12345, 9 months ago

sin5° cos85°+cos5°sin85°

Answers

Answered by Nishanth1208

5

Answer:

sin 5 .cos 85+cos 5.sin 85 =

sin(5+85) = sin 90 = 1

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Answered by srithuganesan

7

Step-by-step explanation:

cos(90-5) cos85 + sin(90-5) sin85

cos85 cos85 + sin85 sin85 = 1

cos²85 +sin²85=1

since cos square theta plus sin square theta is equal to 1

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