Precalculus Final Exam

Front

What is the conversion formula from radians to degrees?

Back

Degrees = Radians × (180/π)

Front

Back

Front

What is the sum of two complex numbers (a + bi) and (c + di)?

Back

(a + c) + (b + d)i

Front

Calculate the sum: (3 + 2i) + (4 - 5i)

Back

7 - 3i

Front

What is the difference of two complex numbers (a + bi) - (c + di)?

Back

(a - c) + (b - d)i

Front

Calculate the difference: (4 - 2i) - (3 + 6i)

Back

1 - 8i

Front

What is the sum of the angles in a triangle?

Back

180 degrees

Front

If one angle in a triangle is 50 degrees and another is 81 degrees, what is the third angle?

Back

49 degrees

Front

What is the definition of tangent in a right triangle?

Back

Tangent (tan) = Opposite side / Adjacent side

Front

Calculate the tangent of angle X if the opposite side is 30 and the adjacent side is 40.

Back