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If the median AD of triangle ABC be perpendicular to AB then prove that tan A + 2tan B = 0 (I think in above problem it should be BC in place of AB)


If the median AD of triangle ABC be perpendicular to AB then prove that tan A + 2tan B = 0
(I think in above problem it should be BC in place of AB)


Grade:12

2 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

Yes it should be Bc rather than AB..

Once you do this correction, then it becomes a simple question...

Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

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Sagar Singh

B.Tech, IIT Delhi

sagarsingh24.iitd@gmail.com

gautam gangadar
15 Points
4 years ago
Ans is zero it can be proved using sine rule in the two triangles triangle ADC anf Triangle ABCin tri ABC,. (SinA )/BC. = (SinB ) / ACin tri ADC , (Sin (A-90))/DC = (Sin(B+90))/ACsolve it you get the answer.

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