3. Упростите.

Question

1) (13x^(-4))/(y^(-6))*(y/52x^(-5))=(13/52)*(x^(-4-(-5)))*(y^(-6+1))=(1/4)*(x^(1))*(y^(-5))=(x*y^(-5))/4; 2) (21a^(-4))/(10b^6)*(5b^(-6))/(7a^(-8))=((21*5)/(10*7))*a^(-4-(-8))*b^(6-6)=(105/70)*a^4=(3/2)*a^4.

Accepted Answer

1) (13x^(-4))/(y^(-6))*(y/52x^(-5))=(13/52)*(x^(-4-(-5)))*(y^(-6+1))=(1/4)*(x^(1))*(y^(-5))=(x*y^(-5))/4; 2) (21a^(-4))/(10b^6)*(5b^(-6))/(7a^(-8))=((21*5)/(10*7))*a^(-4-(-8))*b^(6-6)=(105/70)*a^4=(3/2)*a^4.

3. Упростите.

Ответ:

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