$2\cdot\sqrt{\frac{1}{12}}+3\cdot\sqrt{\frac{9}{75}}2\cdot\sqrt{\frac{1}{48}}$

$\int3\sqrt{3y+b}dx$

$2\sin^2x+2\cos^2x\cdot\sec^2x-\tan^2x$

$2450+-932$

$\left|-1+\left(-7\right)\right|$

$-4\cdot6-5\cdot\left(-8\right)+3\cdot6+\left(-4\right)+\left(-3\right)$

$\log_{4}28-\log_{4}21+\log_{4}12$