Polytechnic Mathematics

Question 1

What is the derivative of f(x) = 3x² + 5x - 2?

Accepted Answer

6x + 5

Answer

3x + 5

Answer

6x - 2

Answer

5x + 3

Question 2

What is the value of sin(90°)?

Accepted Answer

1

Answer

0

Answer

-1

Answer

0.5

Question 3

Which of the following is the correct formula for the quadratic formula?

Accepted Answer

x = (-b ± √(b²-4ac)) / 2a

Answer

x = (-b ± √(b²+4ac)) / 2a

Answer

x = (b ± √(b²-4ac)) / 2a

Answer

x = (-b ± √(b²-4ac)) / a

Question 4

What is the integral of f(x) = 2x?

Accepted Answer

x² + C

Answer

2x² + C

Answer

x + C

Answer

2 + C

Question 5

What is the slope of a line perpendicular to y = 2x + 3?

Accepted Answer

-1/2

Answer

2

Answer

-2

Answer

1/2

Question 6

What is the determinant of a 2×2 matrix [[a,b],[c,d]]?

Accepted Answer

ad - bc

Answer

ac - bd

Answer

ad + bc

Answer

ab - cd