Give me a formula of GP of class 11th
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A G.P. is a sequence whose first term is non-zero and each of whose succeeding term is r times the preceding term, where r is some fixed non – zero number, known as the common ratio of
the G.P.
For example 3 + 9 + 27 + 81 is a G.P. whose common ratio is 3.
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For knowing any term if a sequence is in GP,
an=ar^(n-1)
where n ---> term
r -----> common ratio
For knowing sum in GP
Sn= a(r^n - 1)/r-1
where a------> first term
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