Q: What is the exact value of sine 15?

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sine(15 degrees) = 0.25882 (rounded)

sine tables, that's how they did it before calculators, there are formulas as well

dhasdhdsad

Sine 3.3 degrees is about 0.057564. Sine 3.3 radians is about -0.157746. Sine 3.3 grads is about 0.051813.

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

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The exact value is 0.5*sqrt(3)

sine(15 degrees) = 0.25882 (rounded)

Answer #1:The exact value is (square root of 6 + square root of 2) / 4===========================Answer #2:I don't think so.The sine of almost all angles is an irrational number. 75 degrees is one of them.That means its sine can never be exactly written with numbers.The value given in Answer #1 is greater than ' 1 ', and we know that no sine canhave that value.

sine tables, that's how they did it before calculators, there are formulas as well

dhasdhdsad

For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.For a sine wave, the RMS is the amplitude divided by square root of 2. The amplitude is 10 cm. in this case; so the exact value is 10 / root(2), or about 7.

Sine 3.3 degrees is about 0.057564. Sine 3.3 radians is about -0.157746. Sine 3.3 grads is about 0.051813.

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

0.2588

The sine of 180 degrees is 0. Remember, the sine value on a unit circle is the y-value. If you find f(pi) in the function f(x)=sin(x), you will get zero as an answer.

If you look at the definition of the sine function in a triangle, you'll discover that the maximum possible value of the sine function is ' 1 ' and the minimum possible value is ' -1 '. There's no angle that can have a sine greater than ' 1 ' or less than ' -1 '. So the absolute value of the sine of anything is always ' 1 ' or less.

It is: cos(15) = (sq rt of 6+sq rt of 2)/4