Question

HELP!! MEDAL!!
How do you know if the trig ratios is sin or cosine??

Answer 1

depends on the question i guess
usually you think of sine as "opposite over hypotenuse" and cosine as "adjacent over hypotenuse"

Answer 2

how do you know if its cosine or sin??

Answer 3

well in the first diagram, the angle 70 is related to its adjacent and hypotenuse, which is it?

Answer 4

you know how to find all of them

Answer 5

?

Answer 6

but you are not being asked to find the cosine or sien

Answer 7

you are being asked to find \(x\)

Answer 8

he/she asked how to recognise if its sin or cos. not to solve it

Answer 9

\[\cos(70^\circ)=\frac{36}{x}\]
\[x=\frac{36}{\cos(70^\circ)}\]

Answer 10

just remember cos=adj/hyp and sin = opp/hyp, then follow satellites method