$\frac{d}{dx}\left(log\left(y\right)=log\left(\left(2x\right)^{ln\left(2x\right)}\right)\right)$

$400-58.9$

$\int_{-\infty}^1\left(\frac{x}{\left(x^2+9\right)}\right)dx$

$2x^2+5x-3$

$sin\left(x\right)cos\left(x\right)=\frac{cos\left(x\right)-cos^3\left(x\right)}{sin\left(x\right)}$

$\left|\left(-5\right)\cdot\left(+4\right)\right|\cdot\left(-2\right)$

$\frac{\cos\:\left(y\right)}{\sec\:\left(y\right)+\tan\:\left(y\right)}$