Question

Is the point 3/5 and 4/5 corresponds to an angle in the unit circle what is the csc

Answer 1

csc = 5/4

Explanation:

Assuming that the two given points 3/5 and 4/5 are the two sides of a triangle and a right angle 0 with legs x and y and z as its hypotenuse.

Then using Pythagoras Theorem:

`z^2=x^2+y^2`

`z^2=((3)/(5) )^2+((4)/(5) )^2`

`z^2 = (9)/(25) + (16)/(25)`

`z^2=(25)/(25)`

`z^2=1`

Taking square root on both the sides:

`z=1`

Now,
`sin\alpha=(4)/(5)`

and we know that
`csc = (1)/(sin\alpha )`

Therefore, csc = 5/4.