Question

Determine the angle x in the triangle given below with AC = 2 and BC = 13. (pic attached this time :-)

Answer 1

x=sin-1(2/13)
x=8.5 degrees

Answer 2

my choices are

Answer 3

arccos(5/13)

Answer 4

b) arcsin(2/13)

Answer 5

c) arctan(13/5)

Answer 6

b is the answer.

Answer 7

what does the arc do in the answer?

Answer 8

d) arccos (2/13)
e) arcsin(13/2)

Answer 9

arcsin indicates sin inverse function.
arccos means cos inverse....like wise.
its a notation for indicatin trignometric inverse functions.

Answer 10

ok cool thanks!

Answer 11

why was it sin^-1?

Answer 12

sorry I mean sin -1

Answer 13

because we had sin(x)=2/13 and so for findin x we had to take sine inverse :)

Answer 14

so is the answer still arcsin(2/13)

Answer 15

the sin(x)=2/13 correct?

Answer 16

why cant we use sin2/13 straight up to find the angle? thanks for your help Brackett