0 like 0 dislike
0 like 0 dislike
Started to learn trigonometric functions this week and I have a question.
When you are checking the x intercepts sometimes you can solve the equation with 2 or more different trigonometric identities, but some of the identities are not giving all of the solutions.
Is there a way to know which identity to use when there are a couple of options?
0 like 0 dislike
0 like 0 dislike
Which identity you use totally depends upon which side is given. If you only have an angle and the hypotenuse, using tan is useless as you don't have the opposite or adjacent. However, if you have two sides and an angle, you can use any trig ratio you want, as all of them will give you the right answer. Hope this answers your question?
0 like 0 dislike
0 like 0 dislike
This question would be clearer, and easier to answer, with an example.

No related questions found

33.4k questions

135k answers

0 comments

33.7k users

OhhAskMe is a math solving hub where high school and university students ask and answer loads of math questions, discuss the latest in math, and share their knowledge. It’s 100% free!