cos 271° positive or negative pls explane it
Answers
Answered by
11
Solution b:
cos 271° lies in third quadrant.
In third quadrant cos is negative .
Therefore ,
cos 271° is negative.
cos 271
= cos ( 270 + 1 )
= - sin 1°
( negative )
••••
=
cos 271° lies in third quadrant.
In third quadrant cos is negative .
Therefore ,
cos 271° is negative.
cos 271
= cos ( 270 + 1 )
= - sin 1°
( negative )
••••
=
prachi2215:
pls ans my another question
please
Answered by
9
Cos 271° is negative because 271° lies on fourth quadrant
In fourth quadrant sec and cosec are positive
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