((856+167)²+(856-167)²)/(856 × 856+167 × 167)= ? · ABC26GN1201
Subject: General Aptitude · Chapter: Simplification
$\frac{(856+167)^{2}+(856-167)^{2}}{856 \times 856+167 \times 167}=$ ?
Answer
Explanation
$$\begin{aligned} \text { Given exp. } & =\frac{(a+b)^{2}+(a-b)^{2}}{a^{2}+b^{2}}(\text { where } a=856, b=167) \\ & =\frac{2\left(a^{2}+b^{2}\right)}{\left(a^{2}+b^{2}\right)}=2 . \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.
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