$\frac{\left(cos\:x\:-\:cos\:x.\:sen\:x\:+\:cos\:x\:\left(1+\:sen\:x\right)\right)}{1\:-\:sen^2\:x}$
$-27z^4+15z^2w^2-12w^4\cdot\:9w+6z$
$-98\:.\:-18$
$9x^3+12x^2+12x+1:x^2+3x+2$
$25z^2+30z+16$
$\left(\frac{5}{4}m^5n^2\right)\left(-\frac{8}{9}m^2n^4l^3\right)$
$2x^2-3x-6$
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!