In triangle ABC,if tanB=2sinAsinC÷sin(A+c),then tanA,tanB,tanB are in which progression
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ʇuǝɯɥɔɐʇʇɐ uǝʌᴉƃ ǝɥʇ ǝǝs ǝsɐǝld
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they are in h.p
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the above answer is correct
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