Find the following values from the information given
sec(theta°); cos(theta°) = −0.9

sec(154.158°) = -1.1111

Step-by-step explanation:

given data

cos(theta°) = −0.9

to find out

sec(theta°)

solution

as we know that given equation

cos(theta°) = −0.9

theta° =  

theta° = 154.158   .................1

so now we find

sec(theta°)

and we know

sec(theta°) =     .................2

sec(theta°) =    ..............3

sec(theta°) =

sec(154.158°) = -1.1111

i don't know

step-by-step explanation: