SOLUTION: Calculate the values of a that will satisfy the following equation for 0°≤a≤360° if sec a=2.5

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Question 916308: Calculate the values of a that will satisfy the following equation for
0°≤a≤360° if sec a=2.5
Answer by lwsshak3(11628) About Me  (Show Source):
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Calculate the values of a that will satisfy the following equation for
0°≤a≤360° if sec a=2.5
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sec a=(1/cos a)=2.5
cos a=1/(2.5)
using calculator, press inverse cos key and enter 1/(2.5)
a=66.42˚,293.58˚ (In quadrants I and IV where cos>0)