Question

Help!! will give medal:):)
solve for x

Answer 1

check out 45-45-90 triangle. 45 is x

Answer 2

use SOH CAH TOA
for this use cos so cos x=3/4

Answer 3

I made this 'cheat sheet' a while ago. Maybe this can be of some use to you. http://learnix.net/ultimate-trig-cheat-sheet/

Answer 4

so do I do\[\frac{ 3 }{ 4 }=cosX\]

Answer 5

yes, but when you type it into your calculator make sure you solve using the cos inverse (cos^-1) and you should get 41.4096 degrees

Answer 6

Ok thanks so much :)