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MSn3. Expand -26 + 9 + 12 + 15 + 183 + 6 + 9 + 12 +152 + 3 + 4 + 5 + 63 + 6 + 9 + 12 +15 + 18

MSn3 Expand 26 9 12 15 183 6 9 12 152 3 4 5 63 6 9 12 15 18 class=

Answer :

expanding the sum,

[tex]\Sigma^6_{n=2}(3n)=3(2)+3(3)+3(4)+3(5)+3(6)=6+9+12+15+18[/tex]

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