4xy-3y+3xy-y
10w+3v+7w+5v=
2+2
Let Bold u left parenthesis t right parenthesisequals2 t cubed Bold i plus left parenthesis t squared minus 9 right parenthesis Bo...
100×1.09÷12
1.8divided by 43
36 x 90 - 36 x y = 360
Prove that:
$\frac{sina+cosa+1}{sina+cosa-1}$ - $\frac{1+cosa-cosa}{1-sina+cosa}$ =2(1+coseca)
36 x 90 - 36 x * = 360
