Question

if sin square A is equal to 2 sin a then find the value of a

Answer 1

Hey mate, here's your answer,
$sin {}^{2}a = 2sina \\ sina = 0 \\ \sin(a) = 2(not \: possible) \\ ( \\ but \: i \: think \: the \: question \: is \\ \sin ^{2}a = sin2a \\ for \: this \: case \\ sin \: a \times sin \: a = 2sin \: a \: cos \: a \\ sina = 0 \\ therefore \: a = 0 \\ or \\ sin \: a = 2cos \: a \\ tan \: a = 2 \\ therefore \\ a = {tan}^{ - 1} 2$
hope it helps you, pls mark me as the brainliest....