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If in a DeltaABC,a^(2)cos^(2)A=b^(2)+c^(...

If in a `DeltaABC,a^(2)cos^(2)A=b^(2)+c^(2)`, then

A

`A lt (pi)/(4)`

B

`(pi)/(4)ltAlt(pi)/(2)`

C

`Agt(pi)/(2)`

D

`A=(pi)/(2)`

Text Solution

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The correct Answer is:
C
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