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Points D,E are taken on the side BC of a...

Points D,E are taken on the side BC of a triangle ABC, such that BD=DE=EC. IF `angle BAD=x, angle DAE=y, angle EAC=z`, then the value of `(sin(x+y)sin (y+z))/(sinx sin z)`=

A

4

B

3

C

7

D

8

Text Solution

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The correct Answer is:
A
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