$8\cos^2x+14\cos\left(x\right)-9=0$
$\frac{7}{8}+\frac{x}{5}-1\:\frac{5x}{4}-\frac{3}{10}$
$3tan^2x+16tanx+5$
$3x^2y-5xy^2+x-3y+2;x=-2\:;\:y=-5$
$\left(2+\frac{2i}{n}\right)^4$
$-7+\left|-2\cdot\left(3-4\cdot2\right)-1\right|$
$a^8+18a^481$
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!