Additional Test Reivew

Solve for x

don't forget cot = cos/sin

• π

• π/3

• π/2

• -π

Solve on the Interval [0,2π)
     tan(x) + 1 = 0     

• x = π/4, x = 5π/4
• x = π/4, x = 3π/4
• x = π/2
• x = 3π/4, x = 7π/4

what is the amplitude of y=3sin(7x)-2

• 7
• -2
• 3
• 6