Let n be a positive even integer. The ratio of the largest coefficient and the 2nd largest coefficient in the expansion of(1 + x)n is 11:10. The the number of terms in the expansion of (1 + x)n is(A) 20 (B) 21 (C) 10 (D) 11

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consider the figure of a single riveted lap joint as follows

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cyclic heat engine operates between. temperature of 30 C. What is the least rate of heat rejection per kW net output of an engine. source temperature of 800 C and sink

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