the sum of 5th and 7th term of an ap is 52 and the 10th term is 46 find the difference of the ap
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Answer: d=5
Step-by-step explanation:
a5+a7=52
a10=46
[a+4d]+[a+6d]=52
2a+10d=52.........[1]
a+9d=46.............[2] multiply by 2
2a+18d=92...............[3]
[3]-[1]
d=5
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