EXERCISE 7.3.2: Expressing sums using summation notation.Express the following sums using summation notation. (a) (-2)5+(-1)5+ ... + 75 (b) (-2) + (-1) +0+1+2+3+4+5 (c) 22 +23+24+25+26+27 +28 (d) 0 Express the following sums using summation notation. (a) \( (-2)^{5}+(-1)^{5}+\cdots+7^{5} \) (b) \( (-2)+(-1)+0+1+2+3+4+5 \) (c) \( 2^{2}+2^{3}+2^{4}+2^{5}+2^{6}+2^{7}+2^{8} \) (d) \( 0^{3}+1^{3}+2^{ 1 answer