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The nth term of an ap …

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The nth term of an ap is 60 - 3n. Find its common difference

Posted by Sneha Singh?????? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Sneha Singh?????? 6 years, 10 months ago

Thank you harshika

0Thank You

Harshika Saxena 6 years, 10 months ago

An=60-3n Let , n= 1 then , A1=60-3 A1=57 Now Let , n=2 then A2=60-3(2) A2=60-6 A2= 54 . Now, A2 - A1=d 54-57=d ➡️d = -3.......

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CBSE > Class 10 > Mathematics