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cos(-9∏/4)=


6 years ago

Answers : (2)

shivang belwariar
35 Points
							

cos(-9∏/4)= cos(9∏/4)=  cos(2∏+∏/4) = cos(∏/4) =cos(45) = 1√2

 

 

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6 years ago
Shrawan Kher
14 Points
							

cos(9pie/4)

6 years ago
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