If  and  x,  y are positive integers, then th

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 Multiple Choice QuestionsMultiple Choice Questions

151.

If fraction numerator straight a over denominator 1 minus 2 straight a end fraction space plus space fraction numerator straight b over denominator 1 minus 2 straight b end fraction space plus space fraction numerator straight c over denominator 1 minus 2 straight c end fraction space equals space 1 half, then the value of fraction numerator 1 over denominator 1 minus 2 straight a end fraction space plus space fraction numerator 1 over denominator 1 minus 2 straight b end fraction space plus space fraction numerator 1 over denominator 1 minus 2 straight c end fraction is

  • 1

  • 2

  • 3

  • 3

51 Views

152.

If x = 999, y = 1000, z = 1001, then the value of fraction numerator straight x cubed plus straight y cubed plus straight z cubed minus 3 xyz over denominator straight x minus straight y plus straight z end fraction is

  • 1000

  • 9000

  • 1

  • 1

89 Views

153.

If straight p squared space plus space 1 over straight p squared space equals space 47 comma then value of straight p plus 1 over straight p is

  • 5

  • 6

  • 7

  • 8

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154.

If straight x plus square root of 5 space equals space 5 space plus space square root of straight y and  x,  y are positive integers, then the value of fraction numerator square root of straight x plus straight y over denominator straight x plus square root of straight y end fraction space is colon

  • 1

  • 2

  • square root of 5

  • 5


A.

1

rightwards double arrow space space space straight x plus space square root of 5 space equals space 5 space plus space square root of straight y
rightwards double arrow space space space straight x space minus space square root of straight y space equals space 5 space minus space square root of 5

This equation clearly indicates x = 5,  y = 5

therefore space space fraction numerator square root of straight x space plus space straight y over denominator straight x space plus space square root of straight y end fraction space equals space fraction numerator square root of 5 space plus space 5 over denominator 5 space plus space square root of 5 end fraction space equals space 1

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155.

If (x - 2) (x - p) = x2 - ax + 6, then the value of (a - p) is:

  • 0

  • 1

  • 2

  • 3

78 Views

156.

When 2 straight x plus 2 over straight x space equals space 3 comma then value of straight x cubed space plus space 1 over straight x cubed plus 2 is

  • 2 over 7

  • 7 over 8

  • 7 over 2

  • 8 over 7

54 Views

157.

If straight x space equals space square root of straight a space plus space fraction numerator 1 over denominator square root of straight a end fraction comma space space space straight y space equals space square root of straight a space minus space fraction numerator 1 over denominator square root of straight a end fraction comma space space left parenthesis straight a space space greater than space 0 space right parenthesis then the value of x4 + y4 - 2x2y2 is

  • 16

  • 20

  • 10

  • 5

49 Views

158.

If straight x space equals space cube root of straight x squared plus 11 minus 2 end root comma then the value of x3 + 5x2 + 12x is

  • 0

  • 3

  • 7

  • 11

50 Views

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159.

If straight x space plus space 1 over straight x space equals space 5 comma then the value of fraction numerator 5 straight x over denominator straight x squared space plus space 5 straight x space plus space 1 end fraction is:

  • 1 third

  • 1 fourth

  • 1 half

  • 1 fifth

47 Views

160.

If 1 over straight a left parenthesis straight a squared plus 1 right parenthesis space equals space 3 comma then the value of fraction numerator straight a to the power of 6 plus 1 over denominator straight a cubed end fraction is:

  • 9

  • 18

  • 27

  • 1

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