AMC12 Trigonometry & Precalculus

Question 1

What is sin(30) + cos(60)?

Accepted Answer

1

Answer

sqrt(3)

Answer

sqrt(2)

Answer

1/2

Question 2

In a right triangle, tan(theta)=3/4. What is sin(theta)?

Accepted Answer

3/5

Answer

4/5

Answer

3/4

Answer

4/3

Question 3

What is the period of f(x) = sin(3x)?

Accepted Answer

2pi/3

Answer

3pi

Answer

2pi

Answer

pi/3

Question 4

What is cos(135 degrees)?

Accepted Answer

-sqrt(2)/2

Answer

sqrt(2)/2

Answer

sqrt(3)/2

Answer

-sqrt(3)/2

Question 5

If sin(x)=0.6 with x in the first quadrant, what is tan(x)?

Accepted Answer

3/4

Answer

4/5

Answer

3/5

Answer

0.6

Question 6

What is the amplitude of y = -3sin(2x)?

Accepted Answer

3

Answer

-3

Answer

2

Answer

6