All Flashcards
Describe the key features of the graph of .
Domain: [-1, 1], Range: , increasing function, symmetric about the origin.
Describe the key features of the graph of .
Domain: [-1, 1], Range: , decreasing function, no symmetry.
Describe the key features of the graph of .
Domain: , Range: , increasing function, symmetric about the origin, horizontal asymptotes at .
How does the range restriction of arcsin affect its graph?
The graph is bounded between and , ensuring it's a function (passes the vertical line test).
How does the range restriction of arccos affect its graph?
The graph is bounded between and , ensuring it's a function (passes the vertical line test).
How does the range restriction of arctan affect its graph?
The graph is bounded between and , ensuring it's a function (passes the vertical line test).
How do you evaluate ?
Find the angle within the range of arcsine () whose sine is . Answer: .
How do you evaluate ?
Find the angle within the range of arccosine () whose cosine is 0. Answer: .
How do you evaluate ?
Find the angle within the range of arctangent whose tangent is 1. Answer: .
How to solve ?
Let . Then . Draw a right triangle, find the missing side using the Pythagorean theorem, and then find .
Evaluate
Let . Then . Draw a right triangle, find the adjacent side using the Pythagorean theorem (which is 4), and then find .
Evaluate
Let . Then . Draw a right triangle, find the hypotenuse using the Pythagorean theorem (which is ), and then find .
Define arcsine.
The inverse function of sine; finds the angle whose sine is a given value.
Define arccosine.
The inverse function of cosine; finds the angle whose cosine is a given value.
Define arctangent.
The inverse function of tangent; finds the angle whose tangent is a given value.
What does represent?
The angle whose sine is x.
What does represent?
The angle whose cosine is x.
What does represent?
The angle whose tangent is x.