Question

can anyone give me progressions all formulas .

Answer 1

Answer:

Step-by-step explanation:

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progressions all formulas .

Tn = a + (n - 1) d,

S =(n/2)[2a + (n- 1)d]

If a, b and c are three terms in AP then b = (a+c)/2

Tn = arn-1

Answer 2

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An=a+(n-1)d

Sn=n/2(2a+(n-1)d

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