2 cosec²23° cot 67°-sin²23°-sin²67°-cot²67° equal to: – McqOptions

MCQOPTIONS

1.	2 cosec²23° cot 67°-sin²23°-sin²67°-cot²67° equal to:
A.	sec²23°
B.	tan²23°
C.	0
D.	1
Answer» B. tan²23°

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