# 2nd PUC Mathematics Series 1

PUC Science 2nd Year Mathematics Series-1 quiz

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2nd PUC Mathematics Series 1

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1. The function f : A → B defined by f(x) = 4x + 7, x ∈ R is

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2. The smallest integer function f(x) = [x] is

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3. The function f : R → R defined by f(x) = 3 – 4x is

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4. The number of bijective functions from set A to itself when A contains 106 elements is

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5. If f(x) = (ax2 + b)3, then the function g such that f(g(x)) = g(f(x)) is given by

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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 = π2 will be

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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

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8. Let f : N → R : f(x) = (2x1)/2 and g : Q → R : g(x) = x + 2 be two functions. Then, (gof) (32) is

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9. Let f(x)=x1/x+1, then f(f(x)) is

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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