1 2/3 x 1/2 - 2/5
x+ $\frac{9}{x}$
lim x -> pi 2 (cos x)^ cot x using L'Hospital's rule
7x+5y=8
3x-2y=-9
3+2x<3x-1
Given x + e*y = c, x + b*y = d, evaluate x, y.
Derivada de 1 sobre logaritmo natural de x sobre x
what is indices
m=cotA+cosA
n= cotA-cosA
prove that, (m^2+n^2)^2 = 4mn(4+mn)