Question: What is the y-value of sin(x) when x = 90 degrees? Trigonometry and the Unit Circle: The trigonometric functions may be related to as functions of the x and y values of points on the unit circle where the angle is made by the radius and the positive x-axis. In particular...
What is sin(-30 degrees)? What is sine of 120 degrees? If \textrm{sin}(19^{\circ})=\textrm{cos}(\theta) and 0^{\circ}< \theta < 90^{\circ}, then \theta=___ degrees. How would you approximate the angle between \overrightarrow u = (3,-7) and \overrightarrow v = (2,...
How is 180 Degrees Equal to Pi? We know that 180° is in degrees and π is in radians. To convert 180 degrees in radians, we just use the conversion formula 360° = 2π. Dividing both sides by 2, we get 180° = π. What is Radian Equivalent of 180 Degrees? An angle can be c...
Trigonometry is the branch of mathematics that deals with the measurement of angles and the ratio of sides of a right-angled triangle. To know more about trigonometric ratios, formula, applications, visit Cuemath
What is trigonometry? The word trigonometry comes from two Greek words. These two words are trigonon (triangle) and metria (measure). Therefore, trigonometry is a branch of mathematics but especially a branch of geometry, that specializes in the measurement of triangles....
Hence, the cosine of 270 degrees is 0.For tangent of 270 degrees:We are well aware of the identity thattanθ=sinθcosθ Thus, we can writetan270∘=sin270∘cos270∘ We can write270∘as(270∘+0∘). Or, in equation formtan(270∘+0∘...
$\frac{sin^2\; \theta}{sin^2\;\theta} + \frac{cos^2\;\theta}{sin^2\;\theta} = \frac{1}{sin^2\;\theta}$$1 + cot^2\; \theta = cosec^2\theta$This is the third Pythagorean Identity.Unit Circle Chart in Radians and DegreesThe unit circle chart in radians is given in the...
Hence, sin60ocos30o+ cos60osin30o= 1 Trigonometric Ratios of Complementary Angles Now that we have learnt the values of the trigonometric ratios on various degrees, we shall obtain the trigonometric ratios of complementary angles in terms of the trigonometric ratios of the given angles. ...
The functions are periodic, so as the angle approaches 360 degrees, the sine and cosine values return to their initial values at 0 degrees, completing a cycle. 5 What is the sine of 90 degrees and cosine of 0 degrees? Sin(90°) = 1 and cos(0°) = 1, illustrating their maximum valu...
What is the arccos of 0 ? arccos 0 = ? The arccosine is the inverse cosine function. Since cos 0 = cos 0º = 1 The arccosine of 0 is equal to the inverse cosine function of 0, which is equal to π/2 radians or 90 degrees: arccos 0 = cos-1 0 = π/2 rad = 90º See...