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a, b, c ar the length of sides BC, CA, ...

a, b, c ar the length of sides BC, CA, AB respectively of `DeltaABC` satisfying `log(a+(c )/(a))+log a-log b=log2`.
Also the quadratic equation `a(1-x^(2))+2bx+c(1+x^(2))=0` has two equal roots.
Q. The value of `(sinA+sinB+sinC)` is equal to :

A

`(5)/(2)`

B

`(12)/(5)`

C

`(8)/(3)`

D

2

Text Solution

Verified by Experts

The correct Answer is:
B
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