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Two sides of a triangle are of lengths 2...

Two sides of a triangle are of lengths 2a and 2b and contain an angle of `120^@`. If the angle opposites the sides 2a is `theta`, then the value of `tantheta` is equal to

A

`(asqrt3)/(2a+b`

B

`(asqrt3)/(a+2b)`

C

`(asqrt3)/(2a-b`

D

`(asqrt3)/(a-2b`

Text Solution

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The correct Answer is:
B
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