Question

sinx=7/9 Help?

Answer 1

@jim_thompson5910

Answer 2

which function undoes sine?

Answer 3

you have sin(x) = 7/9

you need some kind of function that will "cancel" out the "sin" on the left side so you can isolate x

Answer 4

inverse?

Answer 5

inverse sine, good

Answer 6

also known as arcsine

Answer 7

so you need to apply the arcsine function to both sides to isolate x

sin(x) = 7/9

arcsin( sin(x) ) = arcsin(7/9)

x = arcsin(7/9)

x = ??

Answer 8

how do i type in sin-1(7/9)?
i know how to do inverse sine just not the fraction.

Answer 9

sin^-1 does NOT mean 1/sin

Answer 10

would i simplifiy then do it?

Answer 11

inverse sine is its own function

Answer 12

ik.

Answer 13

that's why I like to call it arcsine instead of sin^-1 to avoid confusion

Answer 14

what kind of calculator are you using?

Answer 15

dream calc online.

Answer 16

ok you can use google (that's what I use when I want to share calculation results online)


type in "arcsin(7/9) in degrees" without quotes into google and you will get this page

https://www.google.com/search?hl=&q=arcsin%287%2F9%29+in+degrees&sourceid=navclient-ff&rlz=1B3GGLL_enUS420US420&ie=UTF-8

Answer 17

51.0575587?

Answer 18

yep you got it

Answer 19

Thanks man.

Answer 20

you're welcome