To calculate the value of the sine of an obtuse angle–an angle between 90 and 180 degrees–subtract it from 180 to derive the equivalent acute angle. Step 3 Calculate the sine value for one angle by dividing opposite side by adjacent side. Step 4 Find the quotient of sin(a)/A, and ...
If you like this calculator, you may find these other tools interesting: Trigonometry calculator; Cosine triangle calculator; Sine triangle calculator; Trig triangle calculator; Right triangle trigonometry calculator; Sine cosine tangent calculator; Tangent ratio calculator; and Tangent angle calculator. FAQ...
In a right triangle, there's a right angle (90°90°) and, therefore, the sum of the other two angles (αα and ββ) will be 90°90°. Therefore: Given ββ: α=90°−βα=90°−β; or Given αα: β=90°−αβ=90°−α Finding the two missing sides To find the...
Learn about the unit circle in trigonometry. Understand the use of the unit circle to find the trigonometric functions. See how to find sine and...
- Solve the resulting equation to find the length of the side.Example:1. Find b. Step 1: Choose which trig ratio to use. First, we know we must look at angle B because that is the angle we know the measure of.(Now, you could find the measure of angle A and then use that but...
In trigonometry, the period of a function refers to the distance of a function's wave. Learn how to find the period of a trig function by exploring...
Finding angle values on your hand If you don't mind your classmates watching you count on your fingers (and why should you?), then there is a way to find the values of0°, 30°, 45°, 60°and90°angles on your hand. I won't reinvent the wheel so, if you'd like to use that...
Vector B, the one we are bouncing off of, is also up and to the right but at a lesser degree (also note this vector is translated somewhere in space). The box you see is the right angle between V and R, the reflection of V. Notice that this makes perfect sense, beca...
For example, to find the derivative of sine, we need: and we let $dx$ go to zero. This is tricky to work on directly, but using the $\sin(a + b)$ formula we have As $dx$ goes to zero, $\cos(dx) = 1$ (zero angle is full width), so we have: ...
But you have to go the other direction when you’re solving a triangle. For instance, you might get sin B = 0.82 and have to find the angle B. You’re not asking what’s the sine of some angle, but rather, “What angle has a sine equal to 0.82?”...