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AP EAMCET · Maths · Functions

If f:zz is defined by f(x)=x9-11x8-2x7+22x6+x4-12x3+11x2+x-3xz , then f(11)=

  1. A 7
  2. B 8
  3. C 6
  4. D 9
Verified Solution

Answer & Solution

Correct Answer

(B) 8

Step-by-step Solution

Detailed explanation

Given, f(x)=x9-11x8-2x7+22x6+x4-12x3+11x2+x-3      ∀x∈z Putting 11 in place of x and solving the equation f(11)=119-11(11)8-2(11)7+22(11)6 -(11)4-12(11)3-11(11)2+(11)-3 =11-3 =8