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The least value of n for which (n − 2) x...

The least value of n for which` (n − 2) x^2 + 8x + (n +4) gt sin^(-1) (sin 12) + cos^(-1) (cos 12) AA x in R (n in N) ` is

A

4

B

5

C

6

D

7

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The correct Answer is:
B
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The least value of n such that (n-2)x^(2)+8x+n+4>0, where n e N ,

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Find the least value of n such that (n-2)x^(2)+8x+n+4>0,AA x in R, wheren in N

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