plzz give me answer
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Answer:
sorry dear
Step-by-step explanation:
they didn't teach us
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0
Step-by-step explanation:
let first term of AP be 'a'...
Common difference be 'd'
a4 = 11
a + 3d = 11
a = 11 – 3d .......(eq. 1)
a5 + a7 = 34
(a+4d)+(a+6d) = 34
2d + 10d = 34
2(a+5d) = 34
Therefore,,,a+5d = 17 ......(eq. 2)
From eq. 1 and 2....
a+3d = 11
a+5d = 17
- - -
––––––––––––
-2d = -6
d= -6/-2 = 3
Therefore,,,common difference = 3
I hope it will help...
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