Find all the solutions in there interval (0,2pi) for cos5x=-1/2

Step-by-step explanation:

Solving trigonometric equations.

We are given a condition and we must find all angles who meet it in the provided interval. Our equation is

Solving for 5x:

The values for x will be

To find all the solutions, we'll give n values of 0, 1, 2,... until x stops belonging to the interval

For n=0

For n=1

For n=2

For n=3

For n=4

For n=5 we would find values such as  

which don't lie in the interval

The whole set of results is

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9