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3^n - 3^{n - 1} - 3^{n - 2} is equal to:
3^n - 3^{n - 1} - 3^{n - 2} is equal to:
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More Old MCQ
Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.
Three marksmen simultaneously shoot and hit a rapidly spinning spherical target.
There are five harmonic means between 4/3 and 4/11. What is the fourth term?
Find $\displaystyle \sum_{n = 1}^4 (2k + 1)$.
The probability that a visitor at the mall buys a pack of candy is 30%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy?
Czgy9ZT-2 Find the weight of the tank when empty, in kilo Newton.
What is the coefficient of the term involving $x^{-3}$ in the expansion of $\left( 2x + \dfrac{2}{x} \right)^5?
Two vertices of a rectangle are on the positive x-axis. The other two vertices are on the lines y = 4x and y = 6 - 5x. What is the maximum possible area of the rectangle?
vSk9ZBx-2 Compute the length of belt if the belt will be cross-connected to make the pulleys rotate in opposite directions.
If the population of a city increases by 10% each year, during which year will the population doubled?
A farmer has 2400 ft of fencing and wants to fence off a rectangular field that borders a straight river.
Solve for x if $\dfrac{e^x + e^{-x}}{2} = 1$.
Which of the following states that the force at a point on a system due to a deflection $\delta$ is equal to the partial derivative of the total strain energy of the system with respect to that deflection $\delta$?
Point P has cylindrical coordinates of (8, 30deg, 5). Find the value of x in the Cartesian coordinates.
Twice the larger of two numbers is three more than five times the smaller, and the sum of four times the larger and three times the smaller is 71. What is the smaller number?
Given $f(x) = (x - 4)(x + 3) + 4$. When $f(x)$ is divided by $(x - k)$, the remainder is k, find the value of k.
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