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Solve for
y
if $y = (e^x + e^{-x})^2 - (e^x - e^{-x})^2$.
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More Old MCQ
Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.
The king’s minter boxes his coins 100 to a box. In each box he puts 1 false coin. The king suspects the minter and from each of 100 boxes draws a random coin and has it tested. What is the chance the minter’s peculations go undetected?
A sequence of numbers is defined by the relation $\dfrac{a_{n + 1}}{a_n} = 3^n$ and it is known that $a_1 = 1$. Find the value of $\log_3 a_{100}$.
A product has a current selling price of P325. If its selling price is expected to decline at the rate of 10% per annum because of obsolescence, what will be its selling price four years hence?
If the interest rate on an account is 8.5% compounded yearly, approximately how many years will it take to triple the amount?
A store has three kinds of toys given in every purchase. What is the probability of getting all three toys in five purchases?
Solve for y if $y = (e^x + e^{-x})^2 - (e^x - e^{-x})^2$.
Find the probability that a person tossing three coins will get either all heads or all tails for the second time on the fifth toss.
If $\theta$ is an acute angle of a right triangle where $\sin \theta = x/2$, compute the value of $\sin 2\theta$ in terms of $x$.
sIg3ZYd-2 How many stations are there in the curve?
The distance between the centers of the three circles which are mutually tangent to each other externally are 10, 12, and 14 units. The area of the smallest circle is:
Evaluate $\begin{vmatrix}8 & -20 \\ 4 & 10\end{vmatrix}$.
The Venturi meter is used to measure the presence of flow in the pipe system, the section of the pipe with the smallest pressure is called:
w varies jointly with x and y and inversely with the square of z. If w = 12 when x = 3, y = 8, and z = 2, find the constant of proportionality k.
FgoE76U-2 Find the velocity at t = 0.
A hollow glass bowl in the shape of a sphere of radius 4” is filled with water to a depth of 3”. If the water flows out through a small hole in the bottom so that the level drops 2”, how much water has escaped in in^3?
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