sinθ = 1/2 and cosθ = -√3/2, what is the value of θ?

  • A 30 0
  • B 60 0
  • C 90 o
  • D 120 o
  • E 150 o
waec 1989mathematics

The correct answer is E. 150 o

In the 2nd Quadrant; SINE is the only Positive.

Where Î¸ is 30 for the first quadrant and

 150 in the 2nd quadrant which makes COSINE negative

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