Question

If sin square A=2sinA then find the value of A.

Answer 1

${sin}^{2} a = 2sina \\ sina = 0 \\ sina = 2(not \: possible)$
but I think question is
${sin}^{2} a = sin2a \\ for \: that \: case \\ sina \times sina = 2sinacosa \\ sina = 0 ..a = 0\\ or \\ sina = 2cosa \\ tana = 2 \\ a = {tan}^{ - 1} 2$

Answer 2

Answer:

0

Step-by-step explanation:

sin2a=2sinasina=0sina=2(notpossible)

but I think question is

\begin{lgathered}{sin}^{2} a = sin2a \\ for \: that \: case \\ sina \times sina = 2sinacosa \\ sina = 0 ..a = 0\\ or \\ sina = 2cosa \\ tana = 2 \\ a = {tan}^{ - 1} 2\end{lgathered}sin2a=sin2aforthatcasesina×sina=2sinacosasina=0..a=0orsina=2cosatana=2a=tan−12