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ayushi sharma

· started a discussion

· 1 Months ago

sec 55 is not a reciporal of cosec 55.It must be cos 55.

Question:

Evaluate  cot40otan50o-12cos35osec55o   

Options:
A)

32    

B)

1

C)

12    

D)

0

Solution:

Ans: (c)


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