1.

Statement I In any triangle ABC, the square of the length of the bisector AD is bc(1-(a^(2))/((b+c)^(2))). Statement II In any triangle ABC length of bisector AD is (2bc)/((b+c))cos ((A)/(2)).

Answer»

Both STATEMENT I and Statement II are correct and Statement II is the correct explanation of Statement I
Both Statement I and Statement II are correct and Statement II is not the correct explanation of Statement I
Statement I is correct but Statement II is INCORRECT
Statement I is correct but Statement I is incorrect

Answer :A


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