Title: |
Ellipse Equation Review |
URL: |
https://www.khanacademy.org/math/precalculus/x9e81a4f98389efdf:conics/x9e81a4f98389efdf:ellipse-center-radii/a/ellipse-equation-review |
Content Source: |
Other
Khan Academy
|
| Type: |
Learning Activity
|
Overview: |
In this activity from Khan Academy, students will review their knowledge of ellipse equations and their features: center, radii, and foci. This activity has an embedded video, practice problem with immediate checks for the correctness of answers, an explanation option, and more practice choice at the end of the lesson. This review can be assigned to Google Classroom.
Khan Academy is a free resource for teachers. Teachers can sign up for a free account to access additional resources. |
| Content Standard(s): |
Mathematics
MA2015 (2016)
Grade: 9-12
Precalculus | 37 ) (+) Derive the equations of ellipses and hyperbolas given the foci, using the fact that the sum or difference of distances from the foci is constant. [G-GPE3]
|
|
|
| Tags:
|
center, ellipse, foci, radii |
| License Type:
|
Custom Permission Type
See Terms: https://www.khanacademy.org/about/tos
For full descriptions of license types and a guide to usage, visit :
https://creativecommons.org/licenses
|
| Partnered Event:
|
ALEX Resource Development Summit |
| Accessibility | Text Resources: Content is organized under headings and subheadings |
| Comments | 2019 ALCOS
Precalculus 37). Use trigonometric identities to solve problems.
a. Use the Pythagorean identity sin^2 (θ) + cos^2(θ) = 1 to derive the other forms of the identity.
Example: 1 + cot^2 (θ) = csc^2 (θ)
b. Use the angle sum formulas for sine, cosine, and tangent to derive the double angle formulas.
c. Use the Pythagorean and double angle identities to prove other simple identities. |
