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In any triangle A B C , prove that: (a^2...

In any triangle `A B C ,` prove that: `(a^2sin(B-C))/(sinB+s in C)+(b^2sin(C-A))/(sinC+s in A)+(c^2sin(A-B))/(sinA+s in B)=0`

A

`a+b+c`

B

`a+b-c`

C

`a-b+c`

D

0

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ARIHANT MATHS ENGLISH-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise For Sesssion 1
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  6. In any triangle. if(a^2-b^2)/(a^2+b^2)=("sin"(A-B))/("sin"(A+B)) , the...

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  7. In any triangle A B C , prove that: (a^2sin(B-C))/(sinB+s in C)+(b^2si...

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  11. In Delta ABC, (a + b+ c) (b + c -a) = kbc if

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  12. If : a = 9, b = 8 and c = x satisfies 3 cos C = 2, then : x =

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  13. In DeltaABC, if sin^2 A+ sin^2 B = sin^2 C, then the triangle is

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  14. The lengths of the sides of a triangle are alpha-beta, alpha+beta and ...

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  15. In any triangle A B C , prove that: (1+cos(A-B)cos C)/(1+cos(A-C)cos B...

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  16. If the sides of a triangle ABC are in AP and 'a' is the smallest side,...

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  17. In a DeltaABC, a ^(2) cos 2B+b^(2) cos 2A+2ab cos (A-B)=

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  18. In any DeltaABC, 2 [bc cos A + ca cos B+ ab cos C]=

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  20. If in a Delta ABC, b =sqrt3, c=1 and B-C =90^(@), then angle A is

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