Use gauss's approach to find the follwoing sums (do not use formulas).
1+2+3+4++999
1+3+5+7++997
the sum of sequance a
the sum of sequance b

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Use δjkl and δmpn to determine whether don's claim is true or false. which of the following should don use to prove the triangles are similar? sss sas aas aa

Y=21.95x+10 y=22.45x solve by substitution