Using order of operations, the answer is 569.
Answer: 
<u>Step-by-step explanation:</u>
Note the following identities: tan² x = sec²x - 1

tan² x + sec x = 1
(sec² x -1) + sec x = 1
sec² x + sec x - 2 = 0
(sec x + 2)(sec x - 1) = 0
sec x + 2 = 0 sec x - 1 = 0
sec x = -2 sec x = 1

Answer:
19,018
Step-by-step explanation:
3390 x 5.61= 19017.9
Answer:
area = 1/2× base×height
<u>1</u>×5.8×2.4
2
<u>1</u><u>3</u><u>.</u><u>9</u><u>2</u>
2
=6.96cm²