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How many terms are there in …

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How many terms are there in the AP 41,38,35,...,8?
  • 2 answers

Gaurav Seth 5 years, 4 months ago

An= a + (n-1)d

where, a= 41 and d = a2 -a1=38-41=-3

now, 8 = 41 + (n-1)-3

8-41=-3n+3

-33 = -3n+3

-33-3 =-3n

-36=-3n

n =12

Answer:  12 terms.

Yogita Ingle 5 years, 4 months ago

An= a + (n-1)d

where, a= 41 and d = a2 -a1=38-41=-3

now, 8 = 41 + (n-1)-3

8-41=-3n+3

-33 = -3n+3

-33-3 =-3n

-36=-3n

n =12

therefore there are 12 terms.

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