Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the fourth quadrant. −sin(75) - sin …

Sin 285 degrees is the value of sine trigonometric function for an angle equal to 285 degrees. The value of sin 285° is - (√6 + √2)/4 or -0.9659 (approx). How to Find the Value of Sin 285 Degrees?

为了在计算器上计算sin（x）： 输入输入角度。 在组合框中选择度数（°）或弧度（rad）的角度类型。 按 = 按钮计算结果。

输入-1到1之间的正弦值，选择度数或弧度，获得准确结果。 轻松提升您的三角函数计算能力。 使用这个双曲正弦计算器计算任何数字的双曲正弦。 输入一个值，立即获得准确结果。 简化复 …

What is the value of sin(285) ? The value of sin(285) is (sqrt(2)(-1-sqrt(3)))/4

2024年2月11日 · The exact value of sin(285°) is obtained by first finding the reference angle and then applying the sine sum formula for known angles. For 285°, which is in the fourth …

First, split the angle into two angles where the values of the six trigonometric functions are known. In this case, 285 285 can be split into 225+60 225 + 60. Use the sum formula for sine to …

Calculate sin(285) sin is found using Opposite/Hypotenuse. Determine quadrant: Since 270 285 360 degrees it is located in Quadrant IV. cos is positive. Determine angle type: 285 > 90°, so it …

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Use our sin(x) calculator to find the sine of 285 degrees - sin(285 °) - or the sine of any angle in degrees and in radians.