32
13
3
23
Correct answer is D
If P = 23 (1−r2n2), find n when r = 13 and p = 1
p = 2(1−r2)3n2 when r = 13 and p = 1
1 = 23 (1−(13)2)n2
n2 = 2(3−1)3×3
n2 = 2×23×3
= 49
n = 49
= 23
Calculate the area of an equilateral triangle of side 8cm ...
A straight line makes an angle of 30° with the positive x-axis and cuts the y-axis at y = 5. Fin...
The diagram is a circle with centre O. Find the area of the shaded portion ...
If the volume of a cube is 343cm3, find the length of its side...
Find dydx. If y = 3x3 + 2x2 + 3x + 1...
Given that y = px + q and y = 5 when x = 3, while y = 4 when x = 2, find the value of p and q. ...
An arc of a circle subtends an angle 70° at the centre. If the radius of the circle is 6cm, calc...
At what value of x is the function y = x2 - 2x - 3 minimum?...
If two graphs y = px2 + q and y = 2x2 -1 intersect at x = 2, find the value of p in terms ...