JEE Math Practice Question
cosec18$$^\circ$$ is a root of the equation :
- A.x2 + 2x $$-$$ 4 = 0
- B.4x2 + 2x $$-$$ 1 = 0
- C.x2 $$-$$ 2x + 4 = 0
- D.x2 $$-$$ 2x $$-$$ 4 = 0
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