What is (2, - /6) in rectangular coordinates?

Select one:

a.0

b.(sqrt 3, 1)

c.(sqrt 3, -1)

d.- 1 / (sqrt (2) + sqrt (6))

e.Impossible

What is the exact value of sin (120 degrees)?

Select one:

a.2/3

b.3/2

c..866

d.1/2

e.None of these

The graph of y = 4sin (3x + 2) + 1 has amplitude of:

Select one:

a.0

b.1

c.2

d.3

e.4

What are the possible rational roots of f(x) = 3x⁴- x³+ x²- x + 5?

Select one:

a.{1, 5}

b.{1/3, 5/3}

c.{1, 1/3, 5, 5/3}

d.{1, 1/5, 3, 3/5}

e.{1, 1/3, 5, 5/3}

The graph of y = -2 sin (x - 2) + 1 has amplitude of:

Select one:

a.0

b.1

c.2

d.3

e.4