Question

find the 10th term from end of the AP:4,9,14,................254​

Answer 1

Given

GivenAP-    4,9,14........254

GivenAP-    4,9,14........254Last term of AP is 254

GivenAP-    4,9,14........254Last term of AP is 254Since it is been asked to find the 10th term from end; a=254

GivenAP-    4,9,14........254Last term of AP is 254Since it is been asked to find the 10th term from end; a=254d=−5,n=10

GivenAP-    4,9,14........254Last term of AP is 254Since it is been asked to find the 10th term from end; a=254d=−5,n=10an=a+(n−1)d

GivenAP-    4,9,14........254Last term of AP is 254Since it is been asked to find the 10th term from end; a=254d=−5,n=10an=a+(n−1)dan=254+(10−1)(−5)

GivenAP-    4,9,14........254Last term of AP is 254Since it is been asked to find the 10th term from end; a=254d=−5,n=10an=a+(n−1)dan=254+(10−1)(−5)an=254−45

GivenAP-    4,9,14........254Last term of AP is 254Since it is been asked to find the 10th term from end; a=254d=−5,n=10an=a+(n−1)dan=254+(10−1)(−5)an=254−45an=209

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Answer 2

254, 249, 244,............,4

a=254

d=-5

a10=a+(n-1)d

=254+(10-1)-5

=254+9×-5

=254-45

=209

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