Math, asked by libotuccu2003, 7 months ago

Find the value of

Cos 570 ° sin 510° - sin 690° cos 390°

Answers

Answered by dipendukaushik

0

Answer:

- cos (30°) ×cos (60°) - (-cos 60°) cos (30°)

-√3/2 ×1/2 + 1/2×√3/2

_√3/4 +√3/4

They will cancel each other and hence it is

0

Not step by step explanation but will help you

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