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Question

In a ABC, if c2+a2b2=ac, then B=
[MP PET 1983, 89, 90]

A
π6
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B
π4
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C
π3
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D
None of these
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Solution

The correct option is C π3
cos B =c2+a2b22ac cos B=12 i.e.,B=π3.

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