Question

write the expanded form of -​

Answer 1

Answer:

in this question use the formula of (a+b+c)^2

Step-by-step explanation:

a^2+b^2c^2+2ab+2bc+2ca use it

Answer 2

Answer:

$\left(\frac{a}{b}+\frac{b}{c}+\frac{c}{a}\right)^2$

= $\left(\frac{a}{b}+\frac{b}{c}+\frac{c}{a}\right)\left(\frac{a}{b}+\frac{b}{c}+\frac{c}{a}\right)$

= $\frac{2a}{c}+\frac{2c}{b}+\frac{a^2}{b^2}+\frac{b^2}{c^2}+\frac{2b}{a}+\frac{c^2}{a^2}$

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