Question

If the point (3/5),(4/5) corresponds to an angle in the unit circle, what is csc ?

Answer 1

let's take a peek at the point coordinates
\(\bf \left( \cfrac{3}{5}, \cfrac{4}{5}\right) \implies (x, y) \implies
\left( \cfrac{adjacent}{hypotenuse}, \cfrac{opposite}{hypotenuse}\right)\)

now, \(\bf csc = \cfrac{hypotenuse}{opposite}\)

Answer 2

so, what do you think?

Answer 3

csc is simply the inverse of sin.