In a triangle ABC, a= 4, b = 3, angleA= ...

In a triangle ABC, a= 4, b = 3, `angleA= 60°`. Then, c is the root of the equation

A

(a) `c^(2)-3c-7=0`

B

(b) `c^(2)+3c+7=0`

C

(c) `c^(2)-3c+7=0`

D

(d) `c^(2)+3c-7=0`

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The correct Answer is:

A

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