Math Test Pre-Grade 1 quiz

Practice questions

1. What is the value of Σ(k=1 to n) k (the sum of the integers from 1 to n)?

   • n²
   • n(n+1)
   • n(n-1)/2
   • n(n+1)/2

2. In the sequence {aₙ}, a₁ = 2 and aₙ₊₁ = aₙ + 3. What is a₅?

   • 17
   • 20
   • 11
   • 14

3. What is the value of (1+i)²?

   • 1+2i
   • 1-2i
   • 2i
   • 2

4. Solve log₂(x+1) = 3.

   • x=5
   • x=9
   • x=3
   • x=7

5. What is the indefinite integral ∫(1/x)dx? (x > 0)

   • 1/x²+C
   • x·ln x+C
   • ln|x|+C
   • -1/x+C