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In a triangleABC, if a,c,b are in A.P. t...

In a `triangleABC`, if a,c,b are in A.P. then the value of `(a cos B-b cos A)/(a-b)`, is

A

3

B

2

C

1

D

none of these

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The correct Answer is:
B
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OBJECTIVE RD SHARMA-PROPERTIES OF TRIANGLES AND CIRCLES CONNECTED WITH THEM-Chapter Test
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