If theta=400 degree find the correct sign of sin theta/2
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theta=400
therefore,
theta/2=400/2=200
now sin(theta/2) =sin(200)
since 200degree lies in the third quadrant,
therefore,
sign of sin is negative here therefore sign of sign (theta/2) will be negative.
therefore,
theta/2=400/2=200
now sin(theta/2) =sin(200)
since 200degree lies in the third quadrant,
therefore,
sign of sin is negative here therefore sign of sign (theta/2) will be negative.
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