graphs of trigonometric functions

[verbal parcel]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[lean rain]

just solve algebraically

[jolly hawk]

how

[lean rain]

have you been taught how to solve like simple trig euqations

like cos(x)=0.9

[jolly hawk]

no

but that would cus be cos-1(0.9) wouldnt it

[lean rain]

wha

have you seen $\cos^{-1}$ or $\arccos$ before

[crisp sable]

!𒐪 ɹɐupoɯ⇂ㄥ8𝟝 𒐪!

[jolly hawk]

no

[lean rain]

hmm that is a bit problematic

youd need to know unit circle and arccos for this

[jolly hawk]

oh

[jolly hawk]

+close