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CUET
General Test
Quantitative Reasoning
Trigonometry
The value of (sin30° cos60° - cos30° sin60°) is equal to:
- cos30°
-sin30°
cos30°
sin30°
We know ,
sin(A - B ) = sinA cosB - cosA sinB
Now , (sin30° cos60° - cos30° sin60°)
= sin ( 30° - 60° )
= - sin30°