solve diz plz.........
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S1=3×1×1+5×1
=8=a1
S2=3×2×2+5x2
=22
a2=S2-S1
=14
common Difference=a2-a1
=6
Write answers is 'C'
=8=a1
S2=3×2×2+5x2
=22
a2=S2-S1
=14
common Difference=a2-a1
=6
Write answers is 'C'
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