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If in a triangle ABC, r(1)=2, r(2)=3 and...

If in a triangle `ABC, r_(1)=2, r_(2)=3 and r_(3) =6` then b=

A

1

B

2

C

3

D

4

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The correct Answer is:
D
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AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE SHEET (EXERCISE-III) (LEVEL-II) (Straight Objective Type Questions)
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  2. Show that (1)/(r^(2))+(1)/(r(1)^(2))+(1)/(r(2)^(2))+(1)/(r(3)^(2))=(a^...

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  5. In Delta ABC, if r-1,R=4, Delta =8, then ab+bc+ca=

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  8. In a DeltaABC, if r(1)=2r(2)=3r(3) then a:b=

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  9. In triangle ABC,(r(3)+r(1))sqrt([(rr(1))/(r(3)r(1))])=

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  10. In DeltaABC" prove that " (r(1))/(bc)+(r(2))/(ca)+(r(3))/(ab)=(1)/(r)-...

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  11. Assertion (A) : The radius of the circle inscribed in the triangle obt...

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  16. In DeltaABC, 4R "sin"(A)/(2)"sin"(B)/(2)"sin"(C)/(2)=

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  17. ( a cos A + b cos B + c cos C )/( a +b +c ) =

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  18. r("cot"(A)/(2)"cot"(B)/(2)"cot"(C)/(2))=

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