JEE Math Practice Question
The value of 2sin (12$$^\circ$$) $$-$$ sin (72$$^\circ$$) is :
- A.$${{\sqrt 5 (1 - \sqrt 3 )} \over 4}$$
- B.$${{1 - \sqrt 5 } \over 8}$$
- C.$${{\sqrt 3 (1 - \sqrt 5 )} \over 2}$$
- D.$${{\sqrt 3 (1 - \sqrt 5 )} \over 4}$$
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