JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

1 Easy

1 of 1

Application +4 | -1

In a

\Delta ABC

, if

2s = a + b + c

and

\left( {s - b} \right)\left( {s - c} \right) = x\;{\sin ^2}\frac{A}{2}

, then the value of

x

View answer and explanation

Correct option: A

bc

Option A (

bc

) is correct because by using the formula for

\sin \frac{A}{2}

and comparing it with the given equation, we find that

x = bc

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