The maximum height that a 20 foot ladder can reach safely if we follow the suggestion that the ladder should not make an angle greater that 75 degrees with the ground.
What is 19.32 ft?
200
The equation of the graph of a sine with an amplitude of 3 and a period of 2.
What is y = 3 sin (pix)?
200
The sine of 60 degrees.
What is sqrt(3)/2?
200
2(sin A)(cos A).
What is sin(2A)?
200
The tangent of 30 degrees.
What is 1/sqrt(3)?
200
The height above the ground rounded to the nearest mile of a plane with a takeoff angle of 3 degrees having covered 60 ground miles?
What is 3 mi?
300
The equation of a sine function with a vertical shift of 2 downwards.
What is y = sin x - 2?
300
The cosine of 225 degrees.
What is -1/sqrt(2) or -sqrt(2)/2?
300
1 + (tan A)^2.
What is (sec A)^2?
300
The tangent of 45 degrees.
What is 1?
300
The angle of elevation of the sun when a 7.6 meter flagpole casts an 18.2 meter shadow, rounded to the nearest degree.
What is 23 degrees?
400
The equation of a sine graph with a period of 6pi.
What is y = sin ((1/3)x)?
400
The cosine of 5pi/4.
What is -sqrt(2)/2?
400
(cos A)^2 - (sin A)^2 .
What is cos (2A)?.
400
The tangent of 60 degrees.
What is sqrt(3)?
400
The equivalent expression for cos(pi/4)cos(pi/3)-sin(pi/4)sin(pi/3)
What is cos(pi/4+pi/3) or cos(7pi/12)?
500
The equation of a cosine function with an amplitude of 2 and a phase shift of pi/3 units to the left.