Simplify the following using the formula: \( (a-b)(a+b)=\left\{\mathrm{a}^{2}-\mathrm{b}^{2}\rig...

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Simplify the following using the formula: \( (a-b)(a+b)=\left\{\mathrm{a}^{2}-\mathrm{b}^{2}\right\} \) :
i) \( (79)^{2}-(69)^{2} \)
ii) \( 95 \times 105 \)
\( \mathrm{P} \)
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