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3. In the given series 19, 14, 9, ...... (-46).find:a. 6th term from the end of the seriesb. Find the number of terms in the seriesc. Sum of the series. |
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Answer» a= -16 b= 14 c= -143 Step-by-step explanation: 1st term (a) = 19 difference (d) = -5 last term (TN) = -49 number of term (n) = ? USE formula tn = a +(n-1)d to find no of series i.e 14 find 14-6 th term in question a sum of series use formula ; Sn=n(2A+(n-1)d)/2 |
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