ABC is right angle at B. If m C = 450 Then find the value of ( cosec – McqOptions

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1.	ABC is right angle at B. If m C = 450 Then find the value of ( cosec A - 3) = ?
A.	$${{4}- sqrt{3}} over 2 $$
B.	$$ sqrt{2}- sqrt{3} $$
C.	$${- sqrt{3}} over 2 $$
D.	$${{6}- sqrt{1}} over 3 $$
Answer» C. $${- sqrt{3}} over 2 $$

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