A student club committee consists of 11 people. There are 3 named posts of captain, treasurer and secretary.
How many different...
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