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KCET2021MathematicsFunctions

f: R R defined by f(x) is equal to array c 2 x, x>3 x², 1 < x 3, then f(-2)+f(3)+f(4) is 3 x, x 1 array .

Options

  1. A14
  2. B9
  3. C5
  4. D11

Correct answer

D. 11

Step-by-step solution

Given, f(x)= array cc 2 x, & x>3 x², & 1 < x 3 3 x, & x 1 array . f(-2)+f(3)+f(4)=3(-2)+(3)²+2(4)=-6+9+8=11

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