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Assertion (A) : In a DeltaABC the minimu...

Assertion (A) : In a `DeltaABC` the minimum value of `tan^(2)A//2+tan^(2)B//2+tan^(2)C//2` is 1
Reason (R) : `a^(2)+b^(2)+c^(2)-ab-bc-ca= ge0`

A

A is false, R is true

B

A is true, R is false

C

A is true, R is true and R is not correct explanation of A

D

A is true, R is true and R is correct explanation of A

Text Solution

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The correct Answer is:
D
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