Question

`\frac { a } { ( a - b ) ( a - c ) } + \frac { b } { ( b - c ) ( b - a ) } + \frac { c } { ( c - a ) ( c - b ) }`

the formula is the question pleaseee helppp quickkk
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Answer 1

0

Explanation:

`(a)/((a-b)(a-c)) +(b)/((b-c)(b-a))+(c)/((c-a)(c-b))\\= (a)/((a-b)(a-c)) -(b)/((b-c)(a-b))+(c)/((a-c)(b-c))\\\\= (a(b-c)-b(a-c)+c(a-b))/((a-b)(a-c)(b-c))}\\\\= (ab-ac-ab+bc+ac-bc)/((a-b)(a-c)(b-c))}\\\\= (0)/((a-b)(a-c)(b-c))}\\\\= 0`