32n
9
3n
3n + 1
Correct answer is B
\(\frac{3^{n - 1} \times 27^{n + 1}}{81^{n}}\)
= \(\frac{3^{n - 1} \times 3^{3(n + 1)}}{3^{4n}}\)
= 3\(^{n - 1 + 3n + 3 - 4n}\)
= 3\(^{4n - 4n - 1 + 3}\)
= 32
= 9
In the diagram above; O is the centre of the circle and |BD| = |DC|. If ∠DCB = 35°, find &an...
A car dealer bought a second-hand car for 250,000 and spent N 70,000 refurbishing it. He then s...
Find the 8th term of the A.P -3, -1, 1 ...... ...
Given that cos xo = \(\frac{1}{r}\), express tan x in terms of r...
In the diagram, PQRS is a parallelogram. Find the value of < SQR ...
Simplify \(3\sqrt{12} + 10\sqrt{3} - \frac{6}{\sqrt{3}}\)...
Which of the following gives the point of intersection of the graph y = x2 and y = x + 6 shown ...