$m\left(a\right)=50\cdot g^{-0.75a}$

$-6\left(6w-4u-4\right)$

$\left(1+\left(\frac{1}{n}\right)\right)^{\left(\left(n+1\right)^2\right)}x^n$

$59.5+\left(-104.7\right)$

$sin\:30^{\circ}\:sin\:45^{\circ}\:+\:cos\:30^{\circ}\:cos\:45^{\circ}=\:cos\:75^{\circ}$

$\left(2x^3y\right)dx+\left(x^4+y^4\right)dy=0$

$12=3x$