Question

Use a calculator to evaluate the trigonometric function. Round to four decimal places. Make sure that your calculator is in the correct angle mode.

1) csc 2pi/5

1.3213?

2) sec 0.7

1.3075?

Answer 1

1. I get 1.05146

2. ok

Answer 2

How do you do the first one on the calculator?

Answer 3

since cscØ = 1/sinØ

csc (2π/5) = 1/sin(2π/5)


How did you get the second one correct but miss the first one ?

Answer 4

I think it's because I didn't put in the pi correctly.

Answer 5

All whole numbers are rational numbers.