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Find the equation by using the precise analysis(base : 5ns) 2.1 Three loops Compute the running time. 1=j-i+1 k=i N-1 ( 1+1)(N i) ; - i+ 1) = 2 j=i N ( i+1)(N i) (N i+1)(N i+ 2) 2 2 i=1 N N 3 N + + + 3N + 2) 2 i=1 i=1 i=1 1N(N + 1)(2N + 1) 3) (N + 1) N2 + 3N + 2 + + N 2 6 2 2 2 N3 +32 + 2N 6 2 Find the equation by using the precise analysis(base : 5ns) 2.1 Three loops Compute the running time. 1=j-i+1 k=i N-1 ( 1+1)(N i) ; - i+ 1) = 2 j=i N ( i+1)(N i) (N i+1)(N i+ 2) 2 2 i=1 N N 3 N + + + 3N + 2) 2 i=1 i=1 i=1 1N(N + 1)(2N + 1) 3) (N + 1) N2 + 3N + 2 + + N 2 6 2 2 2 N3 +32 + 2N 6 2