
Graph the inverse sine function by restricting the sine domain to negative pi over two to pi over two, swap coordinates, and identify the domain and range.
Determine the exact value of the inverse sine by solving sine y = -1/2, then apply the unit circle and the range of sine inverse to obtain y = -pi/6.
Restrict cosine to 0 to pi to ensure one-to-one, then graph inverse cosine by swapping x and y and reflecting about y = x, domain [-1,1] and range [0, pi].
Use the unit circle to find the exact value of inverse cosine when cos Y = -1, showing Y = pi within domain [-1, 1] and range [0, pi].
Graph arctan by reflecting the restricted tangent across y = x, revealing domain all real numbers and range (-pi/2, pi/2) with asymptotes at ±pi/2.
Find the exact value of the inverse tangent using the unit circle, noting the domain (-∞, ∞) and range (-π/2, π/2), and show arctan(-1) = -π/4.
Graph the inverse cotangent by restricting its domain to 0 to pi and reflecting about y=x. The inverse's domain is (-infinity, infinity) and its range is (0, pi).
Find the exact value of the inverse cotangent of -√3 using the unit circle, choosing the principal value in [0, π], which gives y = 5π/6.
Graph inverse secant by restricting the domain to [0, pi/2) ∪ (pi/2, pi], swap x and y, obtaining domain (-∞, -1] ∪ [1, ∞) and range [0, pi] excluding pi/2.
Find the exact value of inverse secant using the unit circle; secant y = -2 gives cos y = -1/2, so y = 2pi/3 within the range.
Graph and identify the domain and range of the inverse cosecant by restricting the original secant to -pi/2 to 0 and 0 to pi/2, swap coordinates, and reflect about y=x.
Find the exact value of the inverse cosecant of -2 using the unit circle; solve sin y = -1/2 and choose y = -pi/6 as the principal value.
Learn to evaluate the composition of inverse trig functions using the unit circle, determine the innermost sine value, apply arcsin, and identify the principal value, yielding y = -π/3.
Evaluate trig functions involving inverse trig by using cosine inverse of -4/5 and theta, then apply a second-quadrant triangle to find y = 3.
Learn to find the inverse of a trig function by restricting to a one-to-one domain, swapping variables, solving for y, and using arcsin to get f inverse x = arcsin((x-1)/2).
This course is all about evaluating the six inverse trig functions in great detail, which is a topic covered in Precalculus Trigonometry at the University level.
Once you complete this course, you will thoroughly understand the graphs of the six inverse trig functions. You will also be able to identify the domain and range, find the exact value and algebraically find the inverse of a trig function.
Section 1:
How to Graph Inverse Sine and Identify the Domain and Range
How to Find the Exact Value of Inverse Sine Using the Unit Circle
Section 2:
How to Graph Inverse Cosine and Identify the Domain and Range
How to Find the Exact Value of Inverse Cosine Using the Unit Circle
Section 3:
How to Graph Inverse Tangent and Identify the Domain and Range
How to Find the Exact Value of Inverse Tangent Using the Unit Circle
Section 4:
How to Graph Inverse Cotangent and Identify the Domain and Range
How to Find the Exact Value of Inverse Cotangent Using the Unit Circle
Section 5:
How to Graph Inverse Secant and Identify the Domain and Range
How to Find the Exact Value of Inverse Secant Using the Unit Circle
Section 6:
How to Graph Inverse Cosecant and Identify the Domain and Range
How to Find the Exact Value of Inverse Cosecant Using the Unit Circle
Section 7:
How to Find the Composition of Inverse Trig Functions Using the Unit Circle
(when the inner function is a trig function and the outer function is an inverse trig function).
Section 8:
Evaluating Trig Functions Involving Inverse Trig Functions
(when the inner function is an inverse trig function and the outer function is a trig function).
Section 9:
How to Algebraically Find the Inverse of a Trig Function
Section 10 (Extra):
Attached, as a resource:
1) An overview of concepts for inverse trig functions (handwritten)
2) Hand-written problems that I work out, showing all steps.
For each section (1-9), you are given:
1. An article explaining concepts, details, and the example that is used in the video.
2. A video showing a visual of the example in the article.
3. Resource: Practice problems (attached to the last lecture of each section)
4. Resource: The Answer key to the practice problems (attached to the last lecture of each section)
5. A short quiz to test your knowledge
Remember, practice is key to becoming an expert at mathematics!
If you watch each video, read each article, and work the practice problems given after each video, you will have a good understanding of how to evaluate inverse trig functions!
Sincerely,
MathAngel369