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Sin(30) = 0.5 or (1/2)

Trigonometric data is integrated in your scientific calculator.

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lenpollock

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1y ago

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If tan 3a is equal to sin cos 45 plus sin 30, then the value of a = 0.4.


The function y equals sin θ is not a function beacause sin 30 equals sin 150?

Y=sin X is a function because for each value of X, there is exactly one Y value.


What is the value of sin 30 degrees?

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What is sin 210?

The sine of 210 degrees is equal to -1/2. This value can be derived from the unit circle, where 210 degrees is in the third quadrant, where sine values are negative. Specifically, sin(210°) corresponds to sin(210° - 180°) = sin(30°), and since sine is negative in the third quadrant, sin(210°) = -sin(30°) = -1/2.


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mostly it comes from memorization. If sin 30 = 1/2, then arcsin (1/2) = 30