please solve this sum by step by step and i will mark as brainlist
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Answer:
Step-by-step explanation:
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Step-by-step explanation:
First method
difference between first term of the both series is ans i.e common difference between this Aps is=(-1+8)=7
2nd method
4th term of the first AP =-1+3D
4th term of the 2nd ap is= -8+3D
The difference between their 4th term=(-1+3D)-(-8+3D)=7
where D=common difference of first AP=common difference of 2nd Ap.
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