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a. (1-v)/u +(1+u)/v = [v(1-v) +u(1+u)]/uv
=(v+u +u^2-v^2)/uv
b. 3/(a^2bc) +(a+b^2)/(ab^2c) +2/(abc^2) =3(bc) +ac(a+b^2) +2(ab)/(a^2b^2c^2)
=(3bc +a^2c +acb^2 +2ab)/(a^2b^2c^2)
joseph rimiru answered the question on October 25, 2017 at 05:46
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