+0  
 
0
67
1
avatar

how to find the angle in trigonometry, would apreciate if you could help out with this!

Guest Jun 12, 2017
Sort: 

1+0 Answers

 #1
avatar+6765 
0

You will get something like sin(an angle)= a number from the figure, and then you take the inverse of it.

Example: 

\(\tan x = \dfrac{3}{2}\\ x = \tan^{-1}\dfrac{3}{2}\approx56.3^{\circ}\)Last step is done by calculator.

Even this one!!:

\(\sin x =\dfrac{1-\sqrt5}{2}\\ x = \sin^{-1}\dfrac{1-\sqrt5}{2}\approx 321.8^{\circ}\)

MaxWong  Jun 12, 2017

10 Online Users

avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details