find four consecutive terms in an a.p whose sum is 12 and sum of 3rd and 4th is 14 ( assume the four consecutive terms in a.p are a- d , a, a+ d , a+2d
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Answer:
-3,1,5,9 hope it helps u
Step-by-step explanation:
a-d+a+a+d+a+2d = 12
4a+ 2d = 12
2a+ d= 6 _____1)
a+d + a+ 2d = 14
2a + 3d = 14 ______2)
solving 1) and 2) we get;
a= 1 and d= 4
then
1st term = a-d = 1-4= -3
2nd = a = 1
3rd = a+d = 1+4 = 5
4th = a+ 2d = 9
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