Find the domain and range of the function f(x)=x^2 Determine the value of 7!/6! without using a calculator. How can one find the degree of freedom in a Chi-square test? Give the domain of the square root of (x - 3). How do you simplify, ln(e) + lnAB? Given two sim...
When working with trig functions, especially those having a phase shift, it may be easier *not* to use the graphing calculator.You can use the Mathway widget below to practice finding the amplitude, period, and phase shift. Try the entered exercise, or type in your own exercise. Then ...
Nicholas, I think that the students & tutors should recognize the exactness (involving square root of 3) of the tangent value, and therefore should be able to use a reference triangle of the 30-60-90 type, rather than resorting to using calculator's arctangent function to get the angle (...
So although sin is a function, arcsin is not. 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 ...
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?
It emphasizes that the pattern is what we need to remember and that identities are true for all values in the domain of the trigonometric function. Using Double-Angle Formulas to Verify Identities Establishing identities using the double-angle formulas is performed using the same steps we use...