1986

JEE Main 1986 Mathematics question on Application of Derivatives

If P(x)=a0+a1x2+a2x4+…+anx2nP(x) = a_0 + a_1x^2 + a_2x^4 + \ldots + a_nx^{2n} is a polynomial in a real variable xx with 0<a0<a1<a2<…<an0 < a_0 < a_1 < a_2 < \ldots < a_n. Then, the function P(x)P(x) has
  1. A.
    neither a maximum nor a minimum
  2. B.
    only one maximum
  3. C.
    only one minimum
  4. D.
    only one maximum and only one minimum
Show answer

Correct option: C

[1986]

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