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if theta denotes the acute angle between...

if `theta` denotes the acute angle between the curves, `y = 10-x^2" and " y=2+x^2` at a point of their intersection, then `abstantheta` is equal to

A

`4//9`

B

`7//17`

C

`8//17`

D

`8//15`

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The correct Answer is:
D
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