3 years ago
Use the given information to evaluate each expression. Answer as simplified tion if possible.
1) tan theta = 2.6
tan(-theta)=
2) cos theta = -0.65
cos(-theta)=
3) csc(-theta) = -(3)/(2)
csc theta =
4) sec(-theta) = (6)/(5)
cos theta =
5)cos(-theta) = - (3)/(5) & sin(-theta) = (4)/(5)
tan theta =
6) cos theta = - (12)/(13) & sin v = (5)/(13)
cot(-theta) =
1 Answers
Best Answer
Barfy Staff answered 3 years ago
Barfy Staff answered 3 years ago
Given:
Trigonometric expressions
1) tan theta = 2.6
tan(-theta) = - tan theta = - 2.6
2) cos theta = - 0.65
cos(-theta) = cos theta = - 0.65
3)csc(-theta) = -(3)/(2)
-csc(theta) = -(3)/(2)
csc theta = (3)/(2)
4) sec(-theta) = (6)/(5)
(1)/(cos (-theta) = (6)/(5)
(1) cos theta = (6)/(5)
cos theta = (6)/(5)
5)cos(-theta) = - (3)/(5) & sin(-theta) = (4)/(5)
cos theta = (3)/(5)
-sin theta = (4)/(5)
sin theta = - (4)/(5)
tan theta = (sin theta)/(cos theta) = ((-4)/(5))/((3)/(5)) = (-4)/(3)
6) cos theta = - (12)/(13) & sin v = (5)/(13)
cot(-theta) = (cos (-theta))/(sin (- theta)) = (cos theta)/(-sin theta)
= (-(12)/(13))/(-((5)/(13)))
= (-12)/(-5)
= (12)/(5)