Question

Evaluate : sin60° . cos30° -- cos60°.sin30°​

Answer 1

Answer:

Value of -

Sin 60° = √3/2

Cos 30° = √3/2

Cos 60° = 1/2

Sin 30° = 1/2

sin60° . cos30° - cos60°.sin30°

√3/2 × √3/2 - 1/2 × 1/2

3/4 - 1/4

3-1/4

2/4

1/2

Answer 2

sin60°=✓3/2

cos30°=✓3/2

cos60°=1/2

sin30°=1/2

sin60°.cos30°-cos60°.sin30°

=✓3/2.✓3/2-1/2.1/2

=3/4 - 1/4

=2/4

=1/2

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