Given A=30degree, verify that sin 2A = 2sin A cos A.
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a = 30
sin 2*30 = 2sin*30.cos*30
sin60 = 2sin30.cos30
sin60 = root3/2 sin 30= 1/2 cos30 = root3/2
root3/2 = 2 * 1/2 * root3/2
root3/2 = 1 * root3/2
root3/2 = root3/2
sin 2*30 = 2sin*30.cos*30
sin60 = 2sin30.cos30
sin60 = root3/2 sin 30= 1/2 cos30 = root3/2
root3/2 = 2 * 1/2 * root3/2
root3/2 = 1 * root3/2
root3/2 = root3/2
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