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Check whether -150 is a term …

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Check whether -150 is a term of the ap: 11,8,5,2....

Posted by Rïshäbh Yádàv 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Ram Kushwah 6 years, 10 months ago

A=11 D=-3

LET Tn=-150

-150 = 11+(n-1)(-3)

-150=11-3n+3

-3n=-164

n=164/3=54.66

n is not a integer so -150 is not term of AP

1Thank You

Aryan Khare 6 years, 10 months ago

An=-150......a=11.....d=-3........an=a+(n-1)d......-150=11+(n-1)-3......-139/-3=n-1.....answer will be in decimal so it is not a term of a.p

0Thank You

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