(f-1)'=2+2x,x is greater than or equal to zero and f'(2)=3,find f'(x)
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sequence
The sum of the terms in a sequence is called a series. Sequence is a function whose domain is the natural numbers. So f(1)= first entry in the sequence, and f(2) is the next.... f(n) is the nth term. We usually don't write sequences that way. Instead of f(1) we write, a1 to refer to the first term. The function tells us the rule we use to find the terms of the sequence. So for example, f says take n and square it. Then the first 3 terms of the sequence are 1, 4 and 9 and the first 3 terms of the series are 1, 5 and 14
natural number means whose straiting from 1, 2, ................................. and counting numbers starting from 0,1, 2, ..........................................
The numbers are: 1-sqrt(2), 1 and 1+sqrt(2) or approximately -0.414214, 1 and 2.414214
The four consecutive natural numbers whose sum is 214 are 52, 53, 54 and 55.