COS 120
COS 120
SEELA YUVARAJU , 10 Years ago
Grade 12
Trigonometry> COS 120...
5 Answers
SHANMUKESHWAR
-0.5
bashaahmmad
-0.5
Approved Last Activity: 10 Years ago
R.GANGARAJU
-1/2
Raghu Vamshi Hemadri
-0.5
Himanshu
cos120 = cos (180 – 60) = – cos60 (:. cos(180 – ∂) = cos∂ ) = – ½When an angle lies in second or third quadrant, then cos is always negative but cos is always positive in fourth quadrant of a plane.
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