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Sum of N Terms of an AP

Write 168 as ...

Question

Write 168 as difference of the square of two natural numbers.

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Solution

We can write 168 as,
$168 = (12 \times 14) ⟹ 168 = (13 - 1) \times (13 + 1) = 13^{2} - 1^{2}$

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