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In Delta ABC on root of the equation ...

In ` Delta ABC ` on root of the equation ` x^(2) - 2bx cos A + b^(2) - a^(2) =0 `is

A

a

B

b

C

c

D

` c^(2) -a^(2) `

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The correct Answer is:
C
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AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE EXERCISE
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  3. In Delta ABC on root of the equation x^(2) - 2bx cos A + b^(2) ...

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  8. If A = 60 ^(@) " then " ( 1)/(a+b) + (1) /( a+ c) =

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  14. The roots of x^(2) - 2 sqrt 3 x+ 2=0 represent two sides of a tria...

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  15. (c- b cos A )/( b - c cos A ) =

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

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  17. In Delta ABC , if a( b cos C + c cos B ) = 2ka^(2) , then k=

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  18. In Delta ABC , if A,B , C are in A.P. The (a+c)/( sqrt(a^(2) -ac + ...

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  19. InDelta ABC , a( b cos C - c cos B) =

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  20. In Delta ABC , (sin A(a- b cos C))/( sin C ( c-b cos A)) =

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