MHB What are the best resources for solving trigonometric equations and identities?

  • Thread starter Thread starter Amathproblem22
  • Start date Start date
  • Tags Tags
    Resources
AI Thread Summary
For solving trigonometric equations and identities, users recommend utilizing resources like solved problems and comprehensive trig/pre-calculus textbooks. Engaging with textbooks allows for a structured approach, encouraging users to post questions as they progress. A specific resource shared is a link to a developed guide that helps streamline the learning process. These resources collectively support a better understanding of trigonometry. Effective study methods and community engagement are emphasized for mastering the subject.
Amathproblem22
Messages
12
Reaction score
0
As per the guidelines, I've come here to ask if anyone knows of any good resources regarding trigonometry. Mainly solving equations and identities.
 
Mathematics news on Phys.org
There are a lot of solved problems here. If that's not what you're after, you could get a trig/pre-calculus textbook and work through it, posting any question you have along the way. :)
 
Also check out this https://mathhelpboards.com/threads/trigonometry-to-memorize-and-trigonometry-to-derive.35/ that I developed. It can narrow down your efforts considerably!
 
Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...
Thread 'Video on imaginary numbers and some queries'
Hi, I was watching the following video. I found some points confusing. Could you please help me to understand the gaps? Thanks, in advance! Question 1: Around 4:22, the video says the following. So for those mathematicians, negative numbers didn't exist. You could subtract, that is find the difference between two positive quantities, but you couldn't have a negative answer or negative coefficients. Mathematicians were so averse to negative numbers that there was no single quadratic...
Thread 'Unit Circle Double Angle Derivations'
Here I made a terrible mistake of assuming this to be an equilateral triangle and set 2sinx=1 => x=pi/6. Although this did derive the double angle formulas it also led into a terrible mess trying to find all the combinations of sides. I must have been tired and just assumed 6x=180 and 2sinx=1. By that time, I was so mindset that I nearly scolded a person for even saying 90-x. I wonder if this is a case of biased observation that seeks to dis credit me like Jesus of Nazareth since in reality...
Back
Top