2. Questions Bank
  3. JEE Main & Advanced
  4. Mathematics
  5. Functions

JEE Main & Advanced Mathematics Functions Question Bank Self Evaluation Test - Relation and Functions-II

  • question_answer
    Let \[f(x)=2{{x}^{2}},g(x)=3x+2\] and \[fog(x)=18{{x}^{2}}+24x+c,\]Then c=

    A) 2

    B) 8

    C) 6

    D) 4

    Correct Answer: B

    Solution :

    [b] \[fog(x)=f\{g(x)\}=f(3x+2)\] \[=2{{(3x+2)}^{2}}=18{{x}^{2}}+24x+8\]  \[\therefore c=8\]


You need to login to perform this action.
You will be redirected in 3 sec spinner