- #1
phat2107
- 11
- 0
Homework Statement
If sin (x) = -6/7
what is cos(x) = ?
what is tan(x) = ?
the answers have to be in integer form, as in no decimals.
the "x" is supposed to be in quadrant 3
2. The attempt at a solution
This is in radians
so i did sin^-1 (-6/7) = -1.02969
the answer I am assuming is (x)
than cos (x) --> 0.5150 and since its in quadrant 3 this will -.5150
than tan(x) --> -1.664
im not sure if i am right soo far, but assuming i am. i tried using pythagoras to figure our what -0.5150 will be in decimal --> -(sqrt(13))/7
and tan --> and I am lost can't figure this out
any guide or assistance would be great thanks