Solve the following trigonometric question:
cos x=3 cos x-2

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither