How many terms of an AP 9,12,15 ......... must be taken to give a sum of 636
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How many terms of an AP 9,12,15 ......... must be taken to give a sum of 636
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Step-by-step explanation:
106 term taken to give sum of 636
formula used is
an term= a+(n-1)d
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Answer:
this question is wrong mate