find the values of .x and y. from Mathematics Relations and F
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    Relations and Functions

    Multiple Choice QuestionsShort Answer Type

    321. Construct a 3 x 4 matrix, whose elements are given by :

    straight a subscript straight i space straight j end subscript equals 1 half space vertical line space minus 3 space straight i space plus space straight j right square bracket
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    322. Construct a 3 x 4 matrix, whose elements are given by :

    straight a subscript straight i space straight j end subscript equals 1 half space vertical line space minus 3 space straight i space plus space straight j right square bracket
    144 Views
    Answer
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    323. If space open square brackets table row cell straight x plus 2 straight y space space end cell cell negative straight y end cell row cell 3 straight x end cell 4 end table close square brackets equals open square brackets table row cell negative 4 end cell 3 row 6 4 end table close square brackets find the values of .x and y.

    We are given that open square brackets table row cell straight x plus 2 straight y space space end cell cell negative straight y end cell row cell 3 straight x end cell 4 end table close square brackets equals open square brackets table row cell negative 4 end cell 3 row 6 4 end table close square brackets

    From the definition of equality of matrices, we have,

    .x + 2y= 4    ...(1)

    – y = 3    ...(2)

    3 x = 6    ...(3)
    From (2).    y = –3
    From (3),    x = 2
    Also (1) is satisfied for x = 2, y = – 3 we have x = 2, y = – 3

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    324. If space open square brackets table row cell straight x plus 2 straight y space space end cell cell 3 straight y end cell row cell 4 straight x end cell 2 end table close square brackets equals open square brackets table row 0 cell space minus 3 end cell row 8 cell space space space 2 end cell end table close square brackets find the values of x and y
    136 Views
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    325. If space open square brackets table row cell straight x minus straight x end cell cell 2 straight x plus straight z end cell row cell 2 straight x minus straight y end cell cell 3 straight z plus straight w end cell end table close square brackets equals open square brackets table row cell negative 1 end cell 5 row 0 13 end table close square brackets find x. y. z. w.
    137 Views
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    326. Find the values of.x, y and z from the following equations :  open square brackets table row cell straight x plus straight y space space space space end cell 2 row cell 5 plus straight z space space space space end cell cell straight x space straight y end cell end table close square brackets equals space open square brackets table row 6 2 row 5 8 end table close square brackets
    124 Views
    Answer
    327. Find the values of.x, y and z from the following equations :  open square brackets table row cell x plus y plus z end cell row cell x plus z end cell row cell y plus z end cell end table close square brackets equals open square brackets table row 9 row 5 row 7 end table close square brackets
    115 Views
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    328. Find the values of a. b, c and rf from the equation :

    open square brackets table row cell straight a minus straight b space space space space space space space space space space end cell cell 2 straight a plus straight c end cell row cell 2 straight a minus straight b space space space space space space space space space end cell cell 3 straight c plus straight d end cell end table close square brackets equals open square brackets table row cell negative 1 end cell 5 row 0 13 end table close square brackets
    134 Views
    Answer
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    329. If space open square brackets table row straight x cell 3 straight x minus straight y end cell row cell 2 straight x plus straight z end cell cell 3 straight y minus straight w end cell end table close square brackets equals open square brackets table row 3 2 row 4 7 end table close square brackets find x, y, x, w'
    133 Views
    Answer
    330. Find ,x, y , a and b if

    open square brackets table row cell 2 straight x minus 3 straight y end cell cell straight a minus straight b end cell 3 row 1 cell straight x plus 4 straight y end cell cell 3 straight a plus 4 straight b end cell end table close square brackets equals open square brackets table row 1 cell negative 2 end cell 3 row 1 6 29 end table close square brackets
    134 Views
    Answer
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