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Check whether -150 is a term of the ap: 11,8,5,2.... |
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Answer» A=11 D=-3LET Tn=-150-150 = 11+(n-1)(-3)-150=11-3n+3-3n=-164n=164/3=54.66n is not a integer so -150 is not term of AP 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 |
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