Question

Cfrac%20%7B%20b%20%7D%20%7B%20%28%20b%20-%20c%20%29%20%28%20b%20-%20a%20%29%20%7D%20%2B%20%5Cfrac%20%7B%20c%20%7D%20%7B%20%28%20c%20-%20a%20%29%20%28%20c%20-%20b%20%29%20%7D" id="TexFormula1" title="\frac { a } { ( a - b ) ( a - c ) } + \frac { b } { ( b - c ) ( b - a ) } + \frac { c } { ( c - a ) ( c - b ) }" alt="\frac { a } { ( a - b ) ( a - c ) } + \frac { b } { ( b - c ) ( b - a ) } + \frac { c } { ( c - a ) ( c - b ) }" align="absmiddle" class="latex-formula">
the formula is the question pleaseee helppp quickkk
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Answer 1

Answer:

0

Step-by-step explanation:

$\frac{a}{(a-b)(a-c)} +\frac{b}{(b-c)(b-a)}+\frac{c}{(c-a)(c-b)}\\= \frac{a}{(a-b)(a-c)} -\frac{b}{(b-c)(a-b)}+\frac{c}{(a-c)(b-c)}\\\\= \frac{a(b-c)-b(a-c)+c(a-b)}{(a-b)(a-c)(b-c)}}\\\\= \frac{ab-ac-ab+bc+ac-bc}{(a-b)(a-c)(b-c)}}\\\\= \frac{0}{(a-b)(a-c)(b-c)}}\\\\= 0$