If in a ABC- 3a-b-c- then the value of B - 2 C - 2 is

The correct option is C 2 The value of #160; B / 2 C / 2 #160; #160; =√( s( s b ) #160;/( s a ) ( s c ) #160; #160;)×√( s( s c ) #160 ...

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Differentiation Using Substitution

If in a ABC...

Question

If in a $△ A B C, 3 a = b + c$ , then the value of $cot \frac{B}{2} cot \frac{C}{2}$ is

1

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\sqrt{3}

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2

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None of these

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In a triangle ABC, if b + c = 3a , then the value of is:

△ A B C, 3 a = b + c

cos \frac{B}{2} cot \frac{C}{2}

△ A B C

b + c = 3 a

cot \frac{B}{2} . cot \frac{C}{2}

[\to a \to b \to c] = - 2

[\to a + 2 \to b, \to b - 2 \to c, \to c + 3 \to a] =

△ A B C

3 a = b + c

cot \frac{B}{2} . cot \frac{C}{2}

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