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WITCHER [35]
3 years ago
11

For which value of theta is sintheta= -1?pi/2pi3pi/22pi​

Mathematics
1 answer:
zmey [24]3 years ago
7 0

Answer:

  3π/2

Step-by-step explanation:

It may help you to realize that the (x, y) coordinates of the point on the unit circle are ...

  (x, y) = (cos(θ), sin(θ))

Since you want sin(θ) = -1, look for the point on the unit circle that has a y-value of -1.  It is the point (0, -1) at the bottom of the circle, where the angle is shown as ...

  θ = 3π/2

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