Question

sin30degree cos60degree+cos30degree sin60degree=sin90degree

Answer 1

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Answer 2

Sin 30 cos 60 + cos 30 sin 60 = sin 90

Sin 30 sin(90-60)+cos30 cos(90-60)=sin 90

Sin 30 sin 30 + cos 30 cos 30 = sin 90

Sin^2 30 + cos ^2 30 =sin 90

1=sin 90

1=1

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