Asked by Anonymous

The sum of first four terms of a linear sequence is 26 and that of the next four terms is 74.find the value of the first term and the common difference
Answered by Reiny
2(2a + 3D) = 26
2a+3d = 13 **

4(2a + 7d) = 74 + 26 = 100
2a + 7d = 25 ***

Subtract ** from *** to find a and d
Answered by Anonymous
I don't understand
Answered by Anonymous
Explain more
Answered by Promise
Nice one
There are no AI answers yet. The ability to request AI answers is coming soon!