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Class XII Maths Applications of Derivatives 2
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Question 1
If each ai > 0, then the shortest distance between the point (0, –3) and the curve y = 1 + a1x2 + a2x4 + ……+ anx2n is
Question 2
The function f(x) = has a local minimum at
Question 3
Suppose the cubic x3 – px + q has three distinct real roots where p > 0 and q > 0. Then which one of the following holds?
Question 4
If the function f (x) = 2x3 − 9ax2 + 12a2 x + 1, where a > 0, attains its maximum and minimum at p and q respectively such that p2 = q, then a equals
Question 5
The real number k for which the equation, 2x3 + 3x + k = 0 has two distinct real roots in [0, 1]
Question 6
If x is real, the maximum value of is
Question 7
The positive real number x, when added to its inverse, gives the minimum value of the sum at x equal to
Question 8
Let f: R → R be defined by
If f has a local minimum at x = –1, then a possible value of k is
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Apr 20JEE & BITSAT