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14 October, 06:46

If sin Θ = 2 over 3 and tan Θ < 0, what is the value of cos Θ?

square root 5 over 2

negative square root of 5

square root of 5 over 3

negative square root of 5 over 3

+3
Answers (1)
  1. 14 October, 08:00
    0
    If sin Θ is positive and tan Θ is negative, then the angle should be in the second quadrant using the rule of thumb. In this case, cos Θ is expected to be negative. Using the calculator, the answer is - 0.7454. This is equivalent to option D. negative square root of 5 over 3
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