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The cosine of the acute angle between th...

The cosine of the acute angle between the curves `y=|x^(2)-1| and y=|x^(2)-3|` at their points of intersection is

A

`(1)/(3)`

B

`(7)/(9)`

C

`(11)/(9sqrt2)`

D

`(2)/(7)`

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The correct Answer is:
B
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