find the sum of AP 5,9,15,... to 15 term
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Answered by
2
Step-by-step explanation:
hear is your answer please give me some thanks
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Answered by
1
Answer:
Sn=n/2[2a+(n-1)d]
Step-by-step explanation:
S15=15/2[2*5+(15-1)4]
S15=15/2[66]
S15=15*33
S15=495
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