Chapter 1 Multiple choice questions

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. The logarithm of 12 to base 2, log₂(12), is

1.079 correct incorrect

2.485 correct incorrect

3.585 correct incorrect

6.000 correct incorrect

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. Which one of the following is not correct?

log(A+B) = log(A) + log(B) correct incorrect

log(A^µ) = µ log(A) correct incorrect

log_x(A) = log_y(A) log_x(y) correct incorrect

log(A/B) = log(A) - log(B) correct incorrect

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. Which of the following quadratic equations does not have real roots?

x² + 4x - 3 = 0 correct incorrect

x² + 4x + 3 = 0 correct incorrect

2x² + 4x - 3 = 0 correct incorrect

2x² + 4x + 3 = 0 correct incorrect

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. The sum and product of the roots of 3x² + 4x - 1 = 0 are, respectively,

4/3 and -1/3. correct incorrect

-4/3 and -1/3. correct incorrect

1/3 and 4/3. correct incorrect

-1/3 and 4/3. correct incorrect

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. Which of the following is a geometric series?

1 + 2 + 3 + 4 + 5 correct incorrect

1 + 6 + 18 + 36 + 54 correct incorrect

1 + 8 + 28 + 56 + 70 correct incorrect

1 - 2 + 4 - 8 + 16 correct incorrect