2nd PUC Mathematics Series 1 December 3, 2020December 22, 2020wefru PUC Science 2nd Year Mathematics Series-1 quiz 1 Created on December 02, 2020 By wefru 2nd PUC Mathematics Series 1 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 1. The function f : A → B defined by f(x) = 4x + 7, x ∈ R is one-one Many-one Odd Even 2 / 10 2. The smallest integer function f(x) = [x] is One-one Many-one Both (a) & (b) None of these 3 / 10 3. The function f : R → R defined by f(x) = 3 – 4x is Onto Not onto None one-one None of these 4 / 10 4. The number of bijective functions from set A to itself when A contains 106 elements is 859 125 106 201 5 / 10 5. If f(x) = (ax2 + b)3, then the function g such that f(g(x)) = g(f(x)) is given by g(x)=(b−x1/3a) g(x)=1(ax2+b)3 g(x)=(ax2+b)1/3 g(x)=(x1/3−ba)1/2 6 / 10 6. If f : R → R, g : R → R and h : R → R is such that f(x) = x2, g(x) = tanx and h(x) = logx, then the value of [ho(gof)](x), if x = π√2 will be 0 1 2 4 7 / 10 7. If f : R → R and g : R → R defined by f(x) = 2x + 3 and g(x) = x2 + 7, then the value of x for which f(g(x)) = 25 is ±1 ±2 0 15 8 / 10 8. Let f : N → R : f(x) = (2x−1)/2 and g : Q → R : g(x) = x + 2 be two functions. Then, (gof) (32) is 3 2 1 0 9 / 10 9. Let f(x)=x−1/x+1, then f(f(x)) is 1x −1/x 1x+1 1x−1 10 / 10 10. If f : R → R, g : R → R and h : R → R are such that f(x) = x2, g(x) = tan x and h(x) = log x, then the value of (go(foh)) (x), if x = 1 will be 0 1 2 3 Your score isThe average score is 20% LinkedIn Facebook Twitter VKontakte 0% Restart quiz