#36 5.03 questions Precalculus

Mathematics
Tutor: None Selected Time limit: 1 Day

May 15th, 2015

sec 4x = 2

1/cos 4x=2

cos 4x=1/2

4x = pi/3 + 2pi*n and 4x = -pi/3 + 2pi*n

x = pi/12 + pi/2 *n and x = -pi/12 + pi/2 *n

May 15th, 2015

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