$35,000\left(4.34\right)$

$\left(2abcd^2ef+3ab^2cde\right)$

$\left(\senx+\cos x\right)^{2}=\cos x\sec x$

$y^2-13y+42$

$\lim_{x\to1}\left(\frac{3x^2-5x+4}{x-1}\right)$

$\frac{x^4+2x^3+x^2-1}{x^2+3}$

$\frac{\cos\left(x\right)+1}{\sin\left(x\right)}=\cot\left(x\right)$