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If the sides of triangle a, b, c be in AP, then find the value of tanA/2 + tanC/2.

+1 vote
in JEE by kratos

If the sides of triangle a, b, c be in AP, then find the value of tanA/2 + tanC/2.

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+5 votes
by kratos
 
Best answer

Now a, b, c are in AP. Therefore,

a + c = 2b ⇒ 2s = 3b

Hence,

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