To solve the equation sin(x)=0.5, we need to identify the angles for which the sine value equals 0.5.
The sine function is periodic, meaning it repeats its values at regular intervals. Specifically, for the sine function, this interval is 360 degrees (or 2π radians).
First, let’s recall the unit circle and the key angles with known sine values. The sine of 30 degrees (or 6π radians) is 0.5, which gives us one solution:
x=30∘.However, since the sine function is positive in both the first and second quadrants, we must also consider another angle in the second quadrant that yields a sine value of 0.5. This angle can be found by subtracting 30 degrees from 180 degrees, yielding:
x=180∘−30∘=150∘,or in radians,
x=π−6π=65π.Given the periodicity of the sine function, these solutions will repeat every 360 degrees. Therefore, the general solutions can be expressed as:
x=30∘+360n∘andx=150∘+360n∘,where n is any integer.
In radians, the solutions can be written as:
x=6π+2πnandx=65π+2πn,where n is any integer.
By leveraging the periodic properties of the sine function and employing the unit circle, we can find all possible solutions to the equation sin(x)=0.5.
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