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The value of the integral underset(0)ove...

The value of the integral `underset(0)overset(1)int(1)/(x^(2)+2x cos alpha +1)dx` is equal to

A

`sin alpha`

B

`alpha sin alpha`

C

`alpha // sinalpha`

D

`alpha//2sinalpha`

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The correct Answer is:
D
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 8-MATHEMATICS
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  4. int (1)/((1+x^(2))sqrt(1-x^(2)))dx is equal to

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  5. int(sqrt(tanx))/(sin x cos x)dx is equal to

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  13. In the group G = { 1, 2, 3, 4, 5 } under addition modulo 6, (3 + 5^(-1...

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  14. If (G, ^(**)) is a group such that a ^(**)b=b^**a for two element a an...

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