C. It's honestly up to the user, upload so others can use it or make it so its copyrighted and make some cash :P
If you mean the search for a phrase or word function on a page,
Left Ctrl + F
This is true because you can go and check yourself in Word and you can click on an image and the sizing handles will appear.
hope that helps :)
Given, a = 3, r = 1/2, n = 10
%r is common ratio
%n is number of terms
%a is the first term of the series
Sum = 0;
a = 3;
r = 1/2;
for i = 0 : 1 : 10;
Sum = Sum + a * r ^ i;
end
Sum
