Engineering QuestionsMathematicsJee Main

67 solved questions with detailed explanations

21

Q.23. Let A, B be points on the two half-lines x-, a > 0 at a distance of a from their point of intersection P. The line segment AB meets the angle bisector of the given half-lines at the point Q. If

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22

Q.14. If and are two vectors such that and , then the maximum value of is :

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23

Q.8. If the mean of the data Class: 5-10, 10-15, 15-20, 20-25, 25-30, 30-35 Frequency: 2, k, 28, 54, k+1, 5 is 21, then k is one of the roots of the equation :

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24

Q.21. If the domain of the function is , then the value of is

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25

Q.21. Let satisfy for some . Then is equal to ________.

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26

Q.18. Let , , be a A. P. and be the minimum value of . Then the value of the integral is:

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27

Q.13. The shortest distance between the lines and , , is :

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28

Q.17. The value of is:

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29

Q.25. Let f be a twice differentiable function such that , . Then is equal to ________.

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30

Q.23. If the sum of the coefficients of and in the expansion of , , is zero, then the value of n is

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31

Q.16. Let for some , be a function satisfying for all . If and , then the value of is :

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32

Q.25. Let be the solution of the differential equation , . If , then the greatest integer less than is ________.

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33

Q.7. The number of 4-letter words, with or without meaning, each consisting of two vowels and two consonants that can be formed from the letters of the word INCONSEQUENTIAL, without repeating any lett

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34

Q.25. If , then is equal to

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35

Q.20. Let be the solution curve of the differential equation , . If the curve passes through the point , then a value of is :

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36

Q.19. Let f: R R be a differentiable function such that for all x, y R and . Then the minimum value of the function , is

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37

Q.16. The area of the region R = {(x,y): , } is equal to :

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38

Q.15. Let a line L passing through the point be perpendicular to both the vectors and . If is the foot of perpendicular from the origin on the line L, then the value of is :

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39

Q.21. From a month of 31 days, 3 different dates are selected at random. If the probability that these dates are in an increasing A.P. is equal to , where and , then is equal to ________.

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40

Q.20. The integral is equal to :

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