print((1+x)*(1+x+x*x),3) print(1/(1-x),10) print(1/(1-x*2),10) print(1/((1-x)*(1-x)),10) print(1/(1-x-x*x),10) print(1/(1-x-x*y),4,4) print(log(1+x),10) print(exp(x),10) print(diff(exp(x*y),x),3,3) print(diff(exp(x*y),y),3,3) print(int(exp(x*y),x),3,3) print(int(exp(x*y),y),3,3)
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