Blogs about: Trigonometry
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Covert Radians to Degrees & Convert Degrees to Radians
Here is what we know: 360° = 2π Radians Divide both sides by 360: 1° = π/180 Radians Or, if we had divided both sides by 2π we get: 1 Radian = 180°/π These equations give us our conversion factors… more →
The Math Blogger
About Sines and Cosines
pseudomotivated wrote 3 days ago: You may have heard about [possibly in a differential equations lecture or in a physics lecture] the … more →
Graphing Trigonometric Functions
Kathryn Zegers wrote 3 days ago: y=sin(x) Click on the image to see a larger image! y=cos(x) Click on the image to see a larger image … more →
Finding the Sine, Cosine, and Tangent of Triangles
Kathryn Zegers wrote 3 days ago: Here are some ways to help you to remember the formulas: SOH – CAH – TOA or Oscar Has A Heap Of Appl … more →
Trigonometry Vocabulary
Kathryn Zegers wrote 3 days ago: Vocabulary: Angle Oppostite Hypotenuse Adjacent Period Radian Amplitude Axis of Oscillation Shift Co … more →
Exact values & multiple quadrant answers
Stacey wrote 1 week ago: Q : Identify the x-values that are solutions of each multiple choice equation: 1. 8cos x +4 = 0 A. … more →
Covert Radians to Degrees & Convert Degrees to Radians
Stacey wrote 1 week ago: Here is what we know: 360° = 2π Radians Divide both sides by 360: 1° = π/180 Radians Or, if we had d … more →
More Trig Solving
Stacey wrote 1 week ago: Q : Find all solutions of the equation in the interval [0, 2pi ) 2 cos² x = 13 sin x – 5 (Multiple C … more →
Trig problem
Stacey wrote 1 week ago: Q: Find all solutions of the equation in the interval [0, 2pi ) tan²x – sec x = -1 (MULTIPLE CHOICE … more →
Exact Values for Trig Functions
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Stacey wrote 1 week ago: If you are in trigonometry or pre-calculus, the below is something you want to memorize, write down, … more →
The Weierstrass Substitution
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Dr. Nichtgegeben wrote 1 week ago: Back in an earlier post we considered a rational parameterization of the unit circle. We saw there t … more →
Trig solutions
Stacey wrote 1 week ago: Q: Find all solutions to the equation in the interval [0, 2pi): sin(2x) - tan(x) = 0 A: To start, … more →
15 degree triangle
Mr. Chase wrote 1 week ago: Check out this fun problem at the math challenges blog. I picked it in honor of what we’re doi … more →
Using trig identities
Stacey wrote 1 month ago: Q: Find cos(2a) if we know that (a – 2 cos a) = 0. A: If (a – 2cos a) = 0, we can solv … more →
Nerd loving: Are geeks good lovers?
Brandy wrote 1 month ago: Nerve. com has this great piece with mathematicians giving sex advice . This got me thinking if the … more →
Basic Trigonometry
wrathofmobius wrote 1 month ago: Basic Trigonometry View This Pollpolls … more →
Crisis of Identity.
aguyinachair wrote 1 month ago: If you’ve ever done any sort of self-analysis or reflection, or even have simply had a conscio … more →
While the wind blows
xcarrymebluex wrote 1 month ago: I have taken tons of pictures lately. However, my mom still needs to call the phone company to re-en … more →
#61:
haleyfaye wrote 1 month ago: When it comes to trig word problems, I will get carried away with drawing the pictures as opposed to … more →
Talk Happy not Hassled: Trigonometry
KaC wrote 1 month ago: It is really difficult to prove a equation, and I really don’t understand what I am doing if I … more →
