What is 2 sin 60 cos 90 + cos 30 2 sin 90? - Quora

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How do we prove that 4 sin theta* sin (60+theta) *sin (120+theta) =sin 3 theta? - Quora

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What is cos90-theta? - Quora

What is 2 sin 60 cos 90 + cos 30 2 sin 90? - Quora

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What is 2 sin 60 cos 90 + cos 30 2 sin 90? - Quora

What is the value of sin45°×cos30°+cos45°×sin30°? - Quora

Evaluate : [{:(,4 sin 30^@2 cos 60^@), (,sin 90^@ 2 cos 0