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Which of the following is/are the soluti...

Which of the following is/are the solution(s) of `x^2-7xx+12=0`

A

2

B

3

C

4

D

both 3 and 4

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Which of the following is the solution set of |2x - 3| lt 7

    A
    `{x : -5 lt x lt 2}`
    B
    `{x : -5 lt x lt 5}`
    C
    `{x : -2 lt x lt 5}`
    D
    `{x : x lt -5 "or " x gt 2}`

  • The solution of y_2-7y_1+12y=0 is

    A
    `y=C_1e^(3x)+C_2e^(4x)`
    B
    `y=C_1xe^(3x)+C_2e^(4x)`
    C
    `y=C_1e^(3x)+C_2xe^(4x)`
    D
    none of these

  • Find the most appropriate solution of the following rational inequation. (x^2+6x-7)/(|x+3|)lt0

    A
    `(-3,-1)uu(-1,7)`
    B
    `(-7,-3)uu(-3,1)uu(1,3)`
    C
    `(-7,3)uu(3,1)`
    D
    `(-7,-3)uu(-3,1)`

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    Which of the following are empty (null) sets ? (i) [x:xlt5andxgt7,x inN} (ii) {x:x^(2)=25and x is an odd integer} (iii) {x:x^(2)-2=0 and is rational ]

    Find the solutions of the equation : 3x^2 - 7x - 6 = 0

    Decide among the following sets,which are subsets of which: A={x:x satisfies x^(2)-8x+12=0},B={2,4,6},C={2,4,6,8},D={6}

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    Which of the following is not formed when H_(2)S reacts acidic K_(2)Cr_(2)O_(7) solution ?

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