So the value of cos 2pi is equal to the value of cos 0, i.e. 1. So cos 2pi equals 1.
The value of cos pi/2 is 0. Cos pi/2 can also be expressed as the equivalent of the given angle (pi/2) in degrees (90°). Since the cosine function is a periodic function, we can represent cos pi/2 as, cos pi/2 = cos(pi/2 + n × 2pi), n ∈ Z. ⇒ cos pi/2 = cos 5pi/2 = < b >cos 9pi/2 and so on.
What is the sin of 2pi? The value of sin of 2pi is 0, i.e. H. sin 2π = 0. From the trigonometric table we know the trigonometric ratios of the standard angles 0, π/6, π/4, π/3 and π/2.
Sine of pi over 2 minus theta equals cosine theta.
The exact value of sin 180 is zero. The sine is one of the primary trigonometric functions that helps determine the angle or sides of a right triangle. It is also called the trigonometric ratio. If theta is an angle, then sine theta is equal to the ratio of the perpendicular and the hypotenuse of the right triangle.
The value of cos 0 degrees is 1. cos 0 degrees in radians is written as cos (0° × π/180°), i.e. H. cos(0π) or cos(0). In this article we will discuss the methods of finding the value of cos 0 degrees using examples. Cos 0° in radians: cos (0π) or cos (0 . . .)
cos(0) = 1
As this angle decreases, the lengths of the hypotenuse and the side adjacent to the angle get closer and closer. Once the angle measurement reaches 0, the hypotenuse and the adjacent side line up perfectly and fall into a 1 to 1 ratio. So the cosine of 0 is 1.
⇒ θ = 2nπ ± 0°, n ∈ Z, [Since the general solution of cos θ = cos ∝ is given by θ = 2nπ ± ∝, n ∈ Z.] Therefore the general solution of cos θ = 1 is θ = 2nπ, n ∈ Z.