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प्रश्न
______ × `((-2)/5)` = 1.
रिकाम्या जागा भरा
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उत्तर
`underlinebb((-5)/2) xx ((-2)/5)` = 1.
Explanation:
Let `x xx ((-2)/5) = 1`
⇒ `(-2x)/5 = 1`
⇒ –2x = 5 ...[By cross-multiplication]
⇒ `x = (-5)/2`
Hence, `(-5)/2 xx ((-2)/5) = 1`.
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