Question

(tan^2 θ)(sen θ)=sen θ por favor ayuda :"v

Answer 1

Esta identidad es falso:

$tan^{2}(x) sen(x)=sen(x)\\ \\ \frac{sen^{2}(x)}{cos^{2}(x)}sen(x)\\ \\ \frac{sen^{3}(x)}{cos^{2}(x)}\neq sen(x)----------Falso$