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Find all exact solutions on [0, 2). (Enter your answers as a comma-separated list.) 2 cos 2 ( t ) + cos( t ) =

Find all exact solutions on

[0, 2).

(Enter your answers as a comma-separated list.)

2 cos2(t) + cos(t) = 1

Use a calculator to find all solutions. (Let k represent an arbitrary integer. Round your answers to four decimal places.)

sin(x) = 0.47

Find all exact solutions on

[0, 2).

(Enter your answers as a comma-separated list.)

tan2(x) = 1 + 2 tan(x)

Use a calculator to find all solutions to four decimal places. (Let k represent an arbitrary integer. Round your answers to four decimal places.)

cos(x) = 0.87

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