Evaluate (1/2 - 1/4 + 1/8 - 1/16 + ...) - 1
...Evaluate (1/2 - 1/4 + 1/8 - 1/16 + ...) - 1
2/3
zero
-2/3
-1
Correct answer is C
S = a/(1-r), where a = 1/2, r = -1/2.
S = 1/2 3/2 = 1/2 x 3/2 = 1/3.
1/3 - 1 = -2/3
2 bags of sugar at Nx per bag are mixed with 3 bags of sugar at Ny per bag. What is the co...
Given that x ≅ 0.0102 correct to 3 significant figures, which of the following cannot be the ac...
The angle of a sector of s circle, radius 10.5cm, is 48°, Calculate the perimeter of the se...
The perimeter of an isosceles right-angled triangle is 2 meters. Find the length of its longer ...
A ladder leans against a vertical wall at an angle 60° to the wall, if the foot of the ladder is...
The distance d between two villages east more than 18 KM but not more than 23KM....
TR is the tangent to the circle PQR with centre O. Find the size of ∠PRT ...