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प्रश्न
______ × `((-2)/5)` = 1.
रिकाम्या जागा भरा
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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