Solve the equation for all degree solutions and if  0° ≤ (theta) < 360°.  Do not use a calculator. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 2 cos^2 (theta) + 9 cos (theta) = −4 (a) all degree solutions (Let k be any integer.) (theta) =  (b)    0° ≤ (theta) < 360° (theta) =

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter8: Complex Numbers And Polarcoordinates
Section: Chapter Questions
Problem 3GP
Question

Solve the equation for all degree solutions and if 
0° ≤ (theta) < 360°.
 Do not use a calculator. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)
2 cos^2 (theta) + 9 cos (theta) = −4
(a) all degree solutions (Let k be any integer.)
(theta) = 

(b)    0° ≤ (theta) < 360°
(theta) =

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