ork Review Chapter 5 18 19 20 53 Ex Score 0 of i pt5339 Hw S

ork: Review Chapter 5 18 19 20 5.3 Ex. Score: 0 of i pt5.3.39 Hw Score: 68.87% (23.42 of 34 pts) 24 of 34 complete Use a calculator to find the approximate value of the expression. Round the answer to two decimal places. 4 4 sec-=579 (Round to two decimal places as needed.)

Solution

sec (4pi/9)

= sec (4*180/9)

= sec (80)

= 1/ (cos 80)

= 5.76