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NEST2018MathematicsBinomial Theorem

Suppose the coefficient of x^7 in (a x^2+ 1 b x )¹¹ is equal to the coefficient of x⁻¹ in (a x- 1 b x^2 )¹¹ . Then

Options

  1. Aa b^2= 2 3
  2. Ba^2=b
  3. Ca=b^2
  4. Da b= 7 5

Correct answer

D. a b= 7 5

Step-by-step solution

No solution available.

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