$5cos^2x-sen^2x-1=0$
$-423+164$
$-72\:\:.\:\:\left(-5\right)$
$\left(-1\right)^2+\left(-1\right)^3-1^4+1^5$
$1-\cot^4a=2\csc^2a-\csc^4a$
$\int\frac{3x-7}{4x^2+9x+5}dx$
$2-4n$
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!