Question

Which value of x does not satisfy the equation sin^2x + sin x =0

Answer 1

π/2

Step-by-step explanation

We just have to replace x by π/2 in the equation and we'll see that it does not satisfy it:

`\begin{gathered} \sin ^2x+\sin x=0 \\ \sin ^2(\pi)/(2)+\sin (\pi)/(2)=0 \\ 1^2+1=0 \\ 2=0\to false \end{gathered}`