## anonymous 4 years ago Can someone explain what needs to be done in this problem?

1. anonymous

are there any numbers? :D

3. EarthCitizen

can i ask smthn, what genre of math is this ?

4. anonymous

noooo

5. anonymous

calculus 2

6. Mertsj

Assign the coordinates (x,y) to point A, (-x,y) to B, (-x,-y) to C and (x,-y) to D. Then calculate the hypotenuse of each triangle, find the sin of the angle and see which one agrees with the argument of the function given in the problem

hmmm...

8. anonymous

ohhh that makes sense i guess

9. anonymous

Metsj i guess you are the only smart one on tonight

10. Mertsj

|dw:1328486260234:dw|

11. Mertsj

All the smart people are watching the super bowl

12. anonymous

hehe lol and what abt u?

13. Mertsj

Yes. I have it on.

14. anonymous

oh good :)

15. anonymous

$\arcsin{x}:\quad [-1,1]\rightarrow[-\pi/2,\pi/2]$$y>0\quad\Rightarrow\quad\mbox{point A}$$y<0\quad\Rightarrow\quad\mbox{point D}$