if A=30 proof sin2A=2 sinA .cosA
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A=30°
sin2A = sin2(30)° = sin60°
= √3/2 ----------------------------------(1)
2 . sinA . cosA = 2 sin30° . cos30°
= 2 × 1/2 × √3/2
= √3/2 -------------------------------------(2)
Since (1) = (2)
sin2A = 2. sinA. cosA
Hope this helps!!
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sin2A = sin2(30)° = sin60°
= √3/2 ----------------------------------(1)
2 . sinA . cosA = 2 sin30° . cos30°
= 2 × 1/2 × √3/2
= √3/2 -------------------------------------(2)
Since (1) = (2)
sin2A = 2. sinA. cosA
Hope this helps!!
Please mark as Brainliest
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