Prove Without using a fora mula that the sum , Sn of the series a² + (ar)² + for n terms is given by :

Sn = a²(1-r\n)(1+r\n) / (1+r)(1-r)
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goog may be able to you find that answer

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

b i think

step-by-step explanation:

not really sure