Question

Find cscθ.

pls answer

Answer 1

The answer to your question is csc Ф =
`(-5)/(4)`

Explanation:

Process

1.- Determine the sign

We must determine csc Ф in the forth quadrangle, here csc is negative.

2.- Determine the hypotenuse

c² = a² + b²

c² = 3² + (-4)²

c² = 9 + 16

c² = 25

c = 5

3.- Determine csc Ф

csc Ф =
`(hypotenuse)/(opposite side)`

csc Ф =
`(5)/(-4)` =
`(-5)/(4)`