aoifek131 aoifek131

08-04-2022
Mathematics

contestada

In an arithmetic sequence, T1=4 and T7=22.
Using Simultaneous equations find the values of a and d.

Respuesta :

nanduvinod749 nanduvinod749

08-04-2022

Answer:

Step-by-step explanation:

t1 means a1 and t7 means a7

a+(n-1)d=an

a+(1-1)d=4

so we get a as 4

a=4

a+(n-1)d=an

4+(7-1)d=22

4+6d=22

6d=22-4

d=18/6

d=3

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