For graph see graphing calculator. As we know sin 90 30 Sin 120 degrees.
What are the relations among all the trigonometrical ratios of 180 – θ.
Sin 120 degrees. We know that the cartesian plane is divided into four quadrants. Favorite Answer look sin120 degree sin 9030 degree. 2π3 rad can be expressed as a decimal not a fraction as 066666666666667π rad 20943951023932 radian.
Hence sin 120 degree cos 30. Since our angle is greater than 90 and less than or equal to 180 degrees it is located in Quadrant II In the second quadrant the values for sin are positive only. 90 degree and 180 degree.
How to find the value of Cos 120 0 As mentioned in the solution given below 120 can be represented in terms of two angles ie. The domain of the inverse sine is -11 the range is -pi2pi2. The Trignometric Table of sin cos tan cosec sec cot is useful to learn the common angles of trigonometrical ratios from 0 to 360.
Another method to derive the value of sine 120 degrees is by using cosine functions. π 1206018060 2π3 radian when reduced to lowest terms. The exact value of is.
The answer is as follows. We can show that 120 degrees can be represented in two angles whose value can be taken from trigonometry table. Let us consider the value 120 degrees in the cartesian plane.
Sin120 3 2 1 sin 120 3 2 1 Divide 3 2 3 2 by 1 1. Sin120 0866025403784 This is the same answer you will get if you have a scientific calculator set to DEG mode and then enter 120 followed by the Sin button. The sin 120-degrees value can be identified using either unit circle or with the help of other trigonometric angles such as 60 180 degrees and so on.
The URL of the video ex. Plugging the angle value in degrees in the previous formula we get. With the help of the trigonometry formula sin 90 a cos awe can determine sin 120 exact value.
It is an odd function. Use this simple csc calculator to calculate the csc value for 120 in radians degrees. Find the Exact Value sin135 degrees Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.
Here I have applied sin90 x cosx identity to find the value of sin120. The calculator will find the inverse sine of the given value in radians and degrees. α rad π 120 180.
In this video we learn to find the value of sin120. Sin 30 degree under root 3 by 2. The value 120 degrees falls on the second quadrant.
Calculate sin120 Determine quadrant. In trigonometrical ratios of angles 180 – θ we will find the relation between all six trigonometrical ratios. For sin 120 degrees i did sin 120 sin 180- 30 – sin 30 -square root of 3 over 2.
Either 90 or 180. The inverse sine ysin-1x or yasinx or yarcsinx is such a function that sinyx. Select degrees or radians in the drop down box and calculate the exact csc 120 value easily.
Sin120 opposite hypotenuse sin 120 opposite hypotenuse Substitute the values into the definition. 120 is an obtuse angle since it is greater than 90 sin120 3 2.