MCQ Bank
The common ratio of the sequence -7, -14, -28, … is ____________.
- A) -2
- B) -7
- C) 7
- D) 2
The $n^{th}$-term of a geometric sequence with common ratio $r$ is given by:
- A) $a_n = a_1 r^{\,n-1}$
- B) $a_n = a_1 r^{\,n}$
- C) $a_n = n a_1 r$
- D) $a_n = n a_1 r^{\,n}$
A geometric sequence is characterized by the presence of which of the following properties?
- A) None of the given choices
- B) A common ratio
- C) Sum of the terms
- D) A common difference
The general notation $a_n$ for a sequence represents the __________.
- A) sum of all the terms
- B) $n^{th}$ term of the sequence
- C) number of terms in the sequence
- D) none of them
An infinite series is best defined as:
- A) A sequence with infinitely many terms
- B) A function defined on the real numbers
- C) The limit of a sequence
- D) The sum of the terms of a sequence
0, 2, 4, 8, ... is a/an ____________ sequence.
- A) harmonic
- B) alternative
- C) geometric
- D) arithmetic
If a function $f(x)$ is continuous over the interval [a,b), then $\int_a^b f(x)\,dx =$_____________.
- A) $\lim_{t \to a^+} \int_t^b f(x)\,dx$
- B) $\lim_{t \to a^-} \int_t^b f(x)\,dx$
- C) $\lim_{t \to b^+} \int_a^t f(x)\,dx$
- D) $\lim_{t \to b^-} \int_a^t f(x)\,dx$
In a geometric sequence, the constant value obtained by dividing any term by its preceding term is called:
- A) Average rate
- B) Common ratio
- C) Fixed difference
- D) Growth factor
If $\lim_{t \to b^-} \int_a^t f(x)\, dx$ results in a finite real number, the integral is said to be _________.
- A) undefined
- B) proper integral
- C) divergent
- D) convergent
The fourth term of the sequence 1, 10, 19, ... is _________.
- A) 30
- B) 29
- C) 27
- D) 28
What happens to the sum of an absolutely convergent series if its terms are rearranged?
- A) The sum becomes zero.
- B) The sum changes to a different finite value.
- C) The sum remains the same.
- D) The series diverges.
Which of the following is a necessary condition for a series to be conditionally convergent?
- A) The series must diverge, but the series of absolute values must converge.
- B) The series must converge, but the series of absolute values must diverge.
- C) The series must have only positive terms.
- D) The terms must approach a non-zero constant.