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If sin theta =a has exactly 3 solution ...

If `sin theta =a ` has exactly 3 solution in `theta in [0,(7pi)/(3)]` then the value of 'a' is

A

[0,1]

B

[-1,1]

C

`[0,(3^(1/2))/2]`

D

[-1,0]

Text Solution

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The correct Answer is:
c
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