In DeltaABC,(b-c)/r1+(c-a)/r2+(a-b)/r3=...

In `DeltaABC,(b-c)/r_1+(c-a)/r_2+(a-b)/r_3=`

A

`s^2`

B

b

C

c

D

0

Text Solution

Verified by Experts

The correct Answer is:

D

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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1B

In DeltaABC,r1r2sqrt[[(4R-r1-r2)/(r1+r2)])
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In DeltaABC,(r2(r3+r1))/sqrt(r1 r2+r2 r3+r3r1)=
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In DeltaABC,(b-c)/r1+(c-a)/r2+(a-b)/r3=
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In DeltaABC,(r1-r)/a+(r2-r)/b=
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In DeltaABC,(r1-r)/a+(r2-r)/b+(r3-r)/c=
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In /\ABC prove that (r1)/(bc) + (r2)/(ca) + (r3)/(ab) = 1/r - 1/(2R).
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In DeltaABC,r r1 cot""A/2=
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In Delta ABC, r2 r3 tan""A/2=
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In Delta ABC, (r1+r2) tan""C/2=
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In Delta ABC(r3-r)cot""C/2=
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In DeltaABC,r(cot""B/2+cot""C/2)=
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In DeltaABC,r(cot""A/2+cot""B/2+cot""C/2)=
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In DeltaABC,r1cot""A/2+r2cot""B/2+r3cot""C/2=
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In DeltaABC,r(r1cot""A/2+r2cot""B/2+r3cot""C/2)=
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In DeltaABC,(r1+r2)sec^2""C/2=
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In a triangle ABC , (r1+r2)/(1+ cos C)=
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In DeltaABC,r^3 cot^2""A/2.cot^2""B/2.cot^2""C/2=
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In DeltaABC,4Rrcos""A/2cos""B/2cos""C/2=
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In DeltaABC,r^2 cot""A/2.cot""B/2.cot""C/2=
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In DeltaABC,acotA+bcotB+c cotC=
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