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May 22, 2024 · The trigonometry formula, sin (90 + a) = cos a, can be applied to find the sin 120 value. As given, sin (90° +30°) = cos 30°. This means sin 120° = cos 30°. We also know that the value of cos 30 degrees is √3/2. Therefore, sin 120° = √3/2. Here, the values of other important trigonometric angles for different ratios are provided for ...
5 days ago · Hence, the value of sin 120 degrees is. 3–√ 2 3 2. . Method 2. Another method to derive the value of sineo 120 degrees is by using cosine functions. With the help of the trigonometry formula, sino (90 + a) = coso a ,we can determine sin 120 exact value. As we know, sino (90° + 30°) = sino 120 degrees. Hence, sin 120 degree = cos 30°.
sin 120° = sin(2.0943) = √3/2 or 0.8660254. . . In the cartesian plane, let's consider the value of 120 degrees. The cartesian plane has four quadrants, as we all know. The second quadrant contains a value of 120 degrees. Because the sine function takes a positive value in the second quadrant, the value of sin 120 degrees should also be ...
The Sine function ( sin (x) ) The sine is a trigonometric function of an angle, usually defined for acute angles within a right-angled triangle as the ratio of the length of the opposite side to the longest side of the triangle. In the illustration below, sin (α) = a/c and sin (β) = b/c. From cos (α) = a/c follows that the sine of any angle ...
Feb 26, 2017 · sin 120° = √ (3)/2. sin 120 degrees = √ (3)/2. The sin of 120 degrees is √ (3)/2, the same as sin of 120 degrees in radians. To obtain 120 degrees in radian multiply 120° by π / 180° = 2/3 π. Sin 120degrees = sin (2/3 × π). Our results of sin120° have been rounded to five decimal places. If you want sine 120° with higher accuracy ...
Jan 18, 2024 · The sine values in degrees oscillate from -1 to +1. The angles between 0° and 90° have positive values starting from 0 and ending at +1. All values of the sine in degrees repeat cyclically. You can calculate them with the following relationships: sin(α + 90°) = sin(90° - α); sin(α + 180°) = -sin(α); and.
May 26, 2024 · Type the angle into the appropriate box. You can choose between two units – degrees and radians. Let's assume we want to find the sine of 40 ° 40\degree 40°. The sin calculator shows the result immediately! It's equal to 0.6428 0.6428 0.6428 (don't forget that's only an approximate value).
