Select the right expression for the following sum and prove that your statement is true for all natural numbers $n$.
$$P _ { \mathrm { n } } : 8 + 6 + 4 \ldots ( 10 - 2 n )$$
A) $\quad 11 n - 2 n ^ { 2 }$
B) $\quad 9 n - n ^ { 2 }$
C) $\quad 11 n - n ^ { 2 }$
D) $\quad 9 n - 2 n ^ { 2 }$
E) none of the above

Question

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The Answer of Select the right expression for the following sum and prove that your statement is true for all natural numbers $n$.
$$P _ { \mathrm { n } } : 8 + 6 + 4 \ldots ( 10 - 2 n )$$
A) $\quad 11 n - 2 n ^ { 2 }$
B) $\quad 9 n - n ^ { 2 }$
C) $\quad 11 n - n ^ { 2 }$
D) $\quad 9 n - 2 n ^ { 2 }$
E) none of the above

Select the Right Expression for the Following Sum and Prove nnn

Select the Right Expression for the Following Sum and Prove $n$