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The value of the integeral int(-pi//7)^(...

The value of the integeral `int_(-pi//7)^(pi//7)x^(3) cos^(2)x dx` is

A

0

B

`(pi)/(4)`

C

1

D

`-1`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2007-MULTIPLE CHOICE QUESTIONS
  1. A=[(-i,0),(0,i)] then A^(T)A= (where I is 2xx2 identity matrix)

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  2. Show that ,the maximum value of ((1)/(x))^(x) is e^((1)/(e)

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  3. The value of the integeral int(-pi//7)^(pi//7)x^(3) cos^(2)x dx is

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