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Sophie [7]
3 years ago
8

Find the following trigonometric values.

Mathematics
1 answer:
Alona [7]3 years ago
6 0

Answer:

\cos(150)\degree = -\frac{\sqrt{3}}{2}\\

\sin(150)\degree=\frac{1}{2}\\

Step-by-step explanation:

Formulae used:

cos (180°-θ) = -cos θ

sin (80°-θ) = sin θ

Therefore,

\cos(150)\degree = cos(180-30)\degree = -\cos(30)\degree = -\frac{\sqrt{3}}{2} \\\\\sin(150)\degree = sin(180-30)\degree = \sin(30)\degree = \frac{1}{2} \\\\

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