$\int\frac{9e^z}{81+e^{2z}}dz$
$\left(4x^2-9\right)\left(4x^2+1\right)$
$cos\left(a-b\right)-cos\left(a+b\right)=2sinasinb$
$730:2$
$9f+f$
$\left(7a^2b^3+5x^2\right)^2$
$\left(a^2+4\right)\left(a^2+8\right)$
Get a preview of step-by-step solutions.
Earn solution credits, which you can redeem for complete step-by-step solutions.
Save your favorite problems.
Become premium to access unlimited solutions, download solutions, discounts and more!