Question
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निर्देश : निम्नलिखित प्रश्नों के लिए निम्नलिखित पर विचार करें :
मान लीजिये (8 + 3√7) 20 = U + V और (8 - 3√7) 20 = W, जहाँ U एक पूर्णांक है और 0 < V < 1.
(U + V)W का मान क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFव्याख्या:
दिया गया है:
(8 + 3√7) 20 = U + V...(i)
(8 - 3√7) 20 = W...(ii)
⇒ (U + V)W =] (8 + 3√7) 20][(8 - 3√7) 20]
= (64 - 63)20 = 120 = 1
∴ विकल्प (b) सही है।
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