CBSE[All India]_XII_Mathematics_2016_Set_01
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Q1Marks:1View Answer
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Q2Marks:1View Answer
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Q3
Write the number of all possible matrices of order 2 X 2 with each entry 1, 2 or 3.
Marks:1View AnswerAnswer:
Order of matrix = 2 x 2
Number of available entries = 3 (i.e., 1, 2 or 3)
Number of all possible matrices = 34 = 81. -
Q4Marks:1View Answer
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Q5Marks:1View Answer
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Q6
Find the vector equation of the plane with intercepts 3, –4 and 2 on x, y and z-axis respectively.
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Q7
Find the coordinates of the point where the line through the points A(3, 4, 1) and B(5, 1, 6) crosses the XZ plane. Also find the angle which this line makes with the XZ plane.
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Q8Marks:4View Answer
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Q9
In a game, a man wins
5 for getting a number greater than 4 and loses 1 otherwise, when a fair die is thrown. The man decided to throw a die thrice but to quit as and when he gets a number greater than 4. Find the expectedvalue of the amount he wins/loses.Marks:4View AnswerAnswer:
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Q10
A bag contains 4 balls. Two balls are drawn at random (without replacement) and are found to be white. What is the probability that all balls in the bag are white?
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