How Do You Find The Value Of Sin 120?

What is the sin of 120 degrees in radians?

Important Angle Summaryθ°θradianssin(θ)90°π/21120°2π/3√3/2135°3π/4√2/2150°5π/61/212 more rows.

What is the value of 120 degree?

What Is The Value Of Cos 120 Degree? Cos 120 degree is equal to minus half which can be written as (- ½ ) or (-0.5).

What is cos135?

The exact value of cos(135°) is -√(2) / 2. To find this, we use the angle sum identity for cosine, which is as follows: cos(X + Y) = cos(X…

What is the value of sin 2 pi by 3?

The exact value of sin(π3) sin ( π 3 ) is √32 .

Is the value of sin 60?

The exact value of sin(60°) sin ( 60 ° ) is √32 .

Is sin 1 the same as CSC?

Sine of an angle is the side of the triangle that does not touch the angle divided by the hypotenuse. … (note that arcsin is multi-valued, so arcsin(sin(x)) need not always be x). cosecant is the reciprical of the sin function or 1/sin(x) so that csc(x)*sin(x) = 1 when it is defined.

What is sin180?

Therefore, the value of sin 180 degrees = 0. The value of sin pi can be derived from some other trigonometric angles and functions like sine and cosine functions from the trigonometry table.

Is sin 1 the same as Arcsin?

Strictly speaking, the symbol sin-1( ) or Arcsin( ) is used for the Arcsine function, the function that undoes the sine. … Think of the Arcsine as the principal arcsine. Restrict the domain to take this inverse function. A function can only be an inverse if it is 1-to-1 and undoes exactly the desired function.

How do you solve cos 75?

Answer and Explanation: The value of cos(75°) is √6−√24 6 − 2 4 . Notice that we can write 75° as 30° + 45°.

What is the value of sin 120 in fraction?

sin 120° = sin(180° − 120°) = √3/2.

How do you find sin 120 without a calculator?

Use the unit circle and the fact that on the unit circle, sin A = y, and cos A = x. By drawing the unit circle it should be clear that sin(120) = sin(60) . If you know that sin(60) = sqrt(3)/2, then sin(120) = sqrt(3)/2. Originally Answered: How do you find sin 120 without a calculator?

Is the value of sin 120 degree?

Using the trigonometry formula, sin (90 + a) = cos a, we can find the sin 120 value. We know that the value of cos 30 degrees is √3/2. Therefore, sin 120° = √3/2.

What is the exact value of tan 120?

Answer and Explanation: The exact value of tan(120°) is -√(3). Since tan(120°) = tan(2 × 60°), we can use the tangent double-angle identity to…

What is sin 150 value?

First of all, observe that 150=180−30 . the answer comes from the fact that cos(30)=√32 and sin(30)=12 are known values.

What is sin 90 degrees in fraction?

Start measuring the angles from the first quadrant and end up with 90° when it reaches the positive y-axis. Now the value of y becomes 1 since it touches the circumference of the circle. Therefore the value of y becomes 1. Therefore, sin 90 degree equals to the fractional value of 1/ 1.

What is the exact value of sin 240 degrees?

sin (240) = sin (60 + 180) = – sin 60.