cutiecomittee123
  • cutiecomittee123
bunch of pre calc questions please help asap!!!
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
cutiecomittee123
  • cutiecomittee123
If sectheta=5/3 and the terminal point determined by theta is in quadrant four then tantheta=4/3 costheta=3/5 sintheta=-2/5 csctheta=-5/4
cutiecomittee123
  • cutiecomittee123
which of these are true and how do you know?
IrishBoy123
  • IrishBoy123
|dw:1443037467058:dw|

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

cutiecomittee123
  • cutiecomittee123
wait so can we use the pythagorean theorum?
IrishBoy123
  • IrishBoy123
|dw:1443038865563:dw|
cutiecomittee123
  • cutiecomittee123
so 3^2+4^2=25 and that means the other side of the traingle is 5
IrishBoy123
  • IrishBoy123
\[\checkmark\]
IrishBoy123
  • IrishBoy123
3-4-5 is the most basic/common/recogniseable Pythagorean triple
cutiecomittee123
  • cutiecomittee123
alright and then that means that the answers are tantheta=4/3 and costheta=3/5 right?
cutiecomittee123
  • cutiecomittee123
@Irishboy123
cutiecomittee123
  • cutiecomittee123
but wait since its in quadrant four doesnt that mean that sin would be negative
IrishBoy123
  • IrishBoy123
yeah don't rush in you know this?? |dw:1443039749879:dw|
cutiecomittee123
  • cutiecomittee123
no i do not know that
IrishBoy123
  • IrishBoy123
|dw:1443039862180:dw|
cutiecomittee123
  • cutiecomittee123
Alright
cutiecomittee123
  • cutiecomittee123
so if its in the fourth quadrant does that mean that 4 and 5 are negtive?
IrishBoy123
  • IrishBoy123
the hypoteneuse is always +ve in the 4th, 4 is -ve, 3 is +ve the CAST thing allows you to predict the sign of the trig function without even looking that far, eg only tan is -ve in the 3rd of course that is because, in the 3rd, both opposite and adjacent are -ve [and hypoteneouse is always +ve, as mentioned] but the CAST shortcut allows you to "just know"
cutiecomittee123
  • cutiecomittee123
okay so just -3, 4, and 5 are the sides of the triangle that we use to determine the sin cos tan sec csc and cot?
cutiecomittee123
  • cutiecomittee123
i mean -4, 3, and 5
cutiecomittee123
  • cutiecomittee123
@IrishBoy123
cutiecomittee123
  • cutiecomittee123
therefore costheta=3/5 and csctheta=-5/4

Looking for something else?

Not the answer you are looking for? Search for more explanations.