SOLUTION: if {{{a/b=b/c=c/d}}}, then prove that {{{(a^3+b^3+c^3)/(b^3+c^3+d^3)}}}{{{""=""}}}{{{a/d}}}

Algebra ->  Finance -> SOLUTION: if {{{a/b=b/c=c/d}}}, then prove that {{{(a^3+b^3+c^3)/(b^3+c^3+d^3)}}}{{{""=""}}}{{{a/d}}}      Log On

Let , then







So, since , , and ,






Since , , so



Edwin