Does all of the above seem like quite a bit of trouble to go to for drawing a simple graph? I agree; it is. When working with trig functions, especially those having a phase shift, it may be easier *not* to use the graphing calculator. ...
Your calculator will give you an answer of around 55°, but that’s just one out of infinitely many. You know from equation 22 that sin(180° − x) = sin x, and since 180° − 55° = 125°, sin 125° = sin 55. But all the trig functions are periodic, repeating every 360...
The general steps to solve a trigonometric equation are:1. Simplify the equation by using trigonometric identities if necessary.2. Isolate the trigonometric function on one side of the equation.3. Use inverse trigonometric functions to find the angle measure.4. Check your solution by plugging it ...
Step 4Solve using your calculator and your skills withAlgebra. Examples Let’s look at a few more examples: Example: find the height of the plane. We know the distance to the plane is 1000 And the angle is 60° What is the plane's height?
The calculator won't tell you this but sin(112.9°) is also equal to 0.9215...So, how do we discover the value 112.9°?Easy ... take 67.1° away from 180°, like this:180° − 67.1° = 112.9°So there are two possible answers for R: 67.1° and 112.9°: Both are possible!