A relation R on a set A is called an equivalence relation iff

If f:R → R is defined by f(x) = x² - 3x + 2 then f(f (x)) =

If the function f:R → R given by f(x) = x² + 3x + 1 and g: R → R given by g(x) = 2x - 3 find gof

The relation 'is parallel to' on the set A of all coplanar straight line is an __________ relation

If f(x) = e^x and g(x) = log x(x > 0), then

Let f:{2, 3, 4, 5} → {3, 4, 5, 9} and g = {3, 4, 5, 9} → {7, 11, 15} be functions defined as f(2) = 3, f(3) = 4,
f(4) = f(5) = 5 and g(3) = g(4) = 7 and g(5) = g(11) = 11 .Find gof(3)

If n(A) = 4 and n(B) = 2 then the number of surjections from A to B is

Let f be exponential function and g be logarithmic function. Find (gof) (1)

The function f:R → R defined by f(x) = x² is _________

Find fog if f(x) = |x| and g(x) = |5x - 2|