Question
Download Solution PDFx + 1/y = 3, y + 1/z = 2 and z + 1/x = 4, ആണെങ്കിൽ, xyz + 1/xyz ന്റെ മൂല്യം കണ്ടെത്തുക?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFകണക്കുകൂട്ടൽ:
x + 1/y = 3 ----(1)
y + 1/z = 2 ----(2)
z + 1/x = 4 ----(3)
(1), (2), (3) എന്നീ സമവാക്യങ്ങൾ കൂട്ടുക.
⇒ x + y + z + 1/x + 1/y + 1/z = 9 ----(4)
(1), (2), (3) എന്നീ സമവാക്യങ്ങൾ ഗുണിക്കുക.
⇒ (x + 1/y) × (y + 1/z) × (z + 1/x) = 3 × 2 × 4
⇒ (xy + x/z + 1 + 1/zy)(z + 1/x) = 24
⇒ (xyz + y + x + 1/z + z + 1/x + 1/y + 1/xyz) = 24
⇒ [xyz + (1/xyz) + x + y + z + 1/x + 1/y + 1/z] = 24
⇒ xyz + 1/xyz + 9 = 24
⇒ xyz + 1/xyz = 24 – 9 = 15
∴ ഉത്തരം 15 ആണ്
Last updated on May 29, 2025
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