The first term of a G.P. is 20, and the common ratio is 4. Find the fifth term.

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ഒരു ജി.പി.യുടെ ആദ്യ പദം. 20 ആണ്, പൊതുഗുണിതം 4 ആണ്. അഞ്ചാമത്തെ പദം കണ്ടെത്തുക.

A5120

B5220

C5020

D5320

Answer:

ആദ്യ പദം 20 , പൊതുഗുണിതം 4 Tn=ar^(n-1) =20×4^(5-1) =20×4^4 =20×256 =5120

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