need2

Question

if in a triangle ABC,(I is incentre) given that IA=5i+3j, IB=-j, IC=3i + j then a) angle C=&prod;/2 b) tan 2A=24/7 c) sin A + sin B + sin C=12/5 d)cos A + cos B + cos C=12/5

SAGAR SINGH - IIT DELHI · Accepted Answer

Dear student,

The correct answer is c)

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Sagar Singh

B.Tech, IIT Delhi

Vectors> need2...

if in a triangle ABC,(I is incentre) given that IA=5i+3j, IB=-j, IC=3i + j then

a) angle C=∏/2

b) tan 2A=24/7

c) sin A + sin B + sin C=12/5

d)cos A + cos B + cos C=12/5

upasana ghosh , 15 Years ago

SAGAR SINGH - IIT DELHI

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Vectors> need2...

if in a triangle ABC,(I is incentre) given that IA=5i+3j, IB=-j, IC=3i + j then a) angle C=∏/2 b) tan 2A=24/7 c) sin A + sin B + sin C=12/5 d)cos A + cos B + cos C=12/5

upasana ghosh , 15 Years ago

SAGAR SINGH - IIT DELHI

LIVE ONLINE CLASSES

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if in a triangle ABC,(I is incentre) given that IA=5i+3j, IB=-j, IC=3i + j then

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