If f: ℝ → ℝ is defined by f(x) = 4 sin x – 3 cos x + 1 is onto, then what is S equal to?

Consider the function f(x) = g(x) + h(x)where g(x) = sin(x/4) and h(x) = cos(4x/5)…

If p and q are the roots of the equation x² – 30x + 221…

Arithmetic mean of 10 observations is 60 and sum of squares of deviations from 50…

The median of the observations 22, 24, 33, 37, x + 1, x + 3,…

A bag contains 20 books out of which 5 are defective. If 3 of the…