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QUESTION
Q
If (x + 1/x) = 4, then x4 + (1/x)4 is :
Solution
Given
(x + 1/x) = 4
⇒ ( x + 1/x)2 = 42
⇒ x2 + (1/x)2 + 2 = 16
⇒ x2 + ( 1/x)2 =...
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Arrange the sentences A, B, C and D from a logical sequence between sentences 1 and 6. (1) Count Rumford is perhaps best known for his observations on the nature of heat. (A) He undertook several experiments in order to test the theories of the origin of frictional heat. (B) According to the calorists, the heat was produced by the “caloric”…
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