If in triangle ABC, a, c and angle A are...

If in triangle ABC, a, c and angle A are given and `c sin A lt a lt c`, then (`b_(1) and b_(2)` are values of b)

A

`b_1 + b_2=2c cosA`

B

`b_1 +b_2 = c cosA`

C

`b_1 +b_2 = 3c cos A`

D

`b_1 +b_2 = 4c sin A`

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The correct Answer is:

A

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