two different AP common difference first term of a first ap is 2 more than the first term of the second AP if the 7th term of the first AP 28 and the 8th term of second ap is 29 then find the 2 difference ap
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Answer:
-11
Step-by-step explanation:
a7=28
a+6d=28
a8=29
a+7d=29
d of second equation is x+2
d of first term is x
a+6x=28
-a-7x-14=29
__________
a+6x=28
-a-7x=-29+14=-15
_____________
-x=13
x=-13
x+2=-13+2=-11
The common difference of second AP is -11
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