$\sin\left(\frac{\pi}{2}+a\right)=\cos\left(a\right)$
$\lim_{x\to0}\left(\frac{9-9cos^2\left(x\right)}{x}\right)$
$x^2-5x+5=0$
$\left(9m+9n\right)^2$
$34x^2+4^2$
$-2\sqrt{3x}+\sqrt{12x}$
$125-\left(3a^2+1\right)^3$
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!