Math, asked by chougulesudhakar22, 7 months ago

d=5,S9=75,n=9, find 'a' and 'a9'

(15 points)
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Answers

Answered by adhyamishra68

0

Step-by-step explanation:

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Answered by rnkjh1july1978

0

Answer:

a9 = a+ 8d

a9= a+40

a=-40

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