Latest IIT-JEE Aptitude Question SOLUTION: Let S = {1, 2, 3, 4). The total number of unordered pairs of disjoint subsets of S is equal to (A) 25 (B) 34 (C) 42 (D) 41

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Previous Question: Two adjacent sides of a parallelogram ABCD are given by AB= 2ˆi +10ˆj+11kˆ 􀁊􀁊􀁊􀁇 and AD= − ˆi + 2ˆj+ 2kˆ 􀁊􀁊􀁊􀁇 . The side AD is rotated by an acute angle α in the plane of the parallelogram so that AD becomes AD′. If AD′ makes a right angle with the side AB, then the cosine of the angle α is given by Next Question: A block of mass 2 kg is free to move along the x–axis. It is at rest and from t = 0 onwards it is subjected to a time–dependent force F(t) in the x direction. The force F(t) varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is (A) 4.50 J (B) 7.50 J (C) 5.06 J (D) 14.06 J.

(#M40027917) IIT-JEE question 2010 question Keep an EYE

Let S = {1, 2, 3, 4). The total number of unordered pairs of disjoint subsets of S is equal to
(A) 25 (B) 34
(C) 42 (D) 41: Asked In IIT-JEE MAN (10 years ago); Unsolved; Is this Puzzle helpful? (1) (0) Submit Your Solution

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Previous Question: Two adjacent sides of a parallelogram ABCD are given by AB= 2ˆi +10ˆj+11kˆ 􀁊􀁊􀁊􀁇 and AD= − ˆi + 2ˆj+ 2kˆ 􀁊􀁊􀁊􀁇 . The side AD is rotated by an acute angle α in the plane of the parallelogram so that AD becomes AD′. If AD′ makes a right angle with the side AB, then the cosine of the angle α is given by Next Question: A block of mass 2 kg is free to move along the x–axis. It is at rest and from t = 0 onwards it is subjected to a time–dependent force F(t) in the x direction. The force F(t) varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is (A) 4.50 J (B) 7.50 J (C) 5.06 J (D) 14.06 J.

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