Question
Download Solution PDFComprehension
Direction : Consider the following for the items that follow :
Let (8 + 3√7) 20 = U + V and (8 - 3√7) 20 = W, where U is an integer and 0 < V < 1.
What is the value of (U + V)W?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Given:
(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
∴ Option (b) is correct.
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