Problem

If a1=7 and an=an1+1 then find the value of a6.

Answer

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Answer

a6=11+1=12

Steps

Step 1 :a1=7

Step 2 :an=an1+1

Step 3 :a6=a5+1

Step 4 :a5=a4+1

Step 5 :a4=a3+1

Step 6 :a3=a2+1

Step 7 :a2=a1+1

Step 8 :a2=7+1=8

Step 9 :a3=8+1=9

Step 10 :a4=9+1=10

Step 11 :a5=10+1=11

Step 12 :a6=11+1=12

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