Math Exam

Question 1

Sine Rule

Answer 1

a/sin(A) = b/sin(B) = c/sin(C)

Question 2

Trig Area Rule

Answer 2

Area = 0.5bcsin(A) OR Area = 0.5absin(C) OR Area = 0.5acsin(B)

Question 3

Cosine Rule

Answer 3

a^2 = b^2+c^2 - 2bcCos(A) OR b^2 = a^2+c^2 - 2acCos(B) OR c^2 = a^2+b^2 - 2ab*Cos(C)

Question 4

Angle of Elevation

Answer 4

The angle of elevation of an object as seen by an observer is the angle between the horizontal and the line from the object to the observer’s eye (the line of sight).

Question 5

Angle of Depression

Answer 5

If the object is below the level of the observer, then the angle between the horizontal and the observer’s line of sight is called the angle of depression.

Question 6

(2a^3)(3a^3)

Answer 6

6a^6

Question 7

(-2m^-4 * n^-1)^3

Answer 7

(-6)^3 * m^-12 * n^-3

Question 8

x^-1

Answer 8

1/(x^1)

Question 9

x^1/2

Answer 9

sqrt(x^1)

Question 10

Vertex Form

Answer 10

Vertex: y = a(x - h)2 + k

Question 11

Standard Form

Answer 11

Standard: y = ax2 + bx + c

Question 12

Intercept form

Answer 12

Intercept: y = (x-p)(x-q)