sin30°×cos30°=1÷2sin60°
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Step-by-step explanation:
sin 30° * cos30° = 1/ 2sin60°
=>1/2 * √3/2 = 1/2 *√3/2
=>1/2 * √3/2 = 1/√3
=>1/2 *√3/2 * √3/1 = 0
=> 3/4
Answered by
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Answer:
Sin 30=1/2; cos 30=√3/2. === 1/2sin60
Step-by-step explanation:
bcz 2sin(theta) is equal to 2√1-cos sq.(theta).
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