Select all of the following that are potential roots of p (x) = x4 - 9x2 - 4x + 12?

The options are:

0

plus/minus 2

plus/minus 4

plus/minus 9

plus/minus (1/2)

plus/minus 3

plus/minus 6

plus/minus 12

1. If cscθ=5/3 then secθ= a. 25/16 b. 5/4 c. 16/25 d. 4/5 2. Simplify the expression (cos x) (sec x) - (sin2 x) a. cos x b. cos2 x c. sec2 x 3. If θ is in Quadrant IV and sinθ=-5/4 then secθ= a. - 13/12 b. - 12/3 c. 12/13 d. 13/12

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