How can I define a+b+c=1 in Sage after doing var('a','b','c')? How would I make sage remember this equation so that it substitutes that value when calculating (a+b+c)².expand() for example?
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How can I define a+b+c=1 in Sage after doing var('a','b','c')? How would I make sage remember this equation so that it substitutes that value when calculating (a+b+c)².expand() for example?