Trigonometric EquationHard
Question
If tan θ = -
, then sin θ is
, then sin θ isOptions
A.
but not 
but not 
B.
or 
or 
C.
but not 
but not 
D.None of these
Solution
Since, tan θ < 0
∴ Angle θ is either in the second or fourth quadrant.
Then, sin θ > 0 or < 0
∴ sin θ may e
or
∴ Angle θ is either in the second or fourth quadrant.
Then, sin θ > 0 or < 0
∴ sin θ may e
or
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