Plz, help me with this question!

870

Step-by-step explanation:

Assuming you mean

30

Using the definition

n =

where n! = n(n - 1)(n - 2) ..... 3 × 2 × 1

Then

30 = =

Cancel the terms 28(27)... on numerator/ denominator, leaving

30 = 30 × 29 = 870

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.