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In Delta ABC, (a + b+ c) (b + c -a) = kb...

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

A

`lamd lt 0`

B

`lamda gt 0`

C

`0 lt lamda lt 4`

D

`lamda lt 4`

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ARIHANT MATHS ENGLISH-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise For Sesssion 1
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  3. Let ABC be a triangle such that angle A =45^(@) , angle B =75^(@), the...

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  5. If cot ""A/2 =(b+c)/(a),then DeltaABC is

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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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