please solve 3 and 4
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3,4,5,6,7,...........
Step-by-step explanation:
3rd term is 5
a+2d=5 —————(1)
7th term is 9
a+6d=9 —————(2)
subtract (1) form (2)
a+6d=9
-a-2d=-5
________
4d=4
d=1
Put value of d
a+6 =9
a=9-6
a=3
3,4,5,6,7,........
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