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निम्नलिखित व्यंजकों के मान ज्ञात कीजिए ज...

निम्नलिखित व्यंजकों के मान ज्ञात कीजिए जब `n=-2`
(i) `5n-2` (ii) `5n^(2)+5n-2` (iii) `n^(3)+5n^(2)+5n-2` है।

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