Q: The value of $${cosec^2} 18° -{1\over cot^272°}$$. – McqOptions

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1.	Q: The value of $${cosec^2} 18° -{1\over cot^272°}$$.
A.	$${1 \over \sqrt { 3}}$$
B.	$$ \sqrt2\over {3 } $$
C.	$${1\over2} $$
D.	1
Answer» E.

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