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 Multiple Choice QuestionsMultiple Choice Questions

171.

If straight x space plus space 1 over straight x space equals space square root of 13 comma space space then space fraction numerator 3 straight x over denominator left parenthesis straight x squared minus 1 right parenthesis end fraction equals to

  • 3 square root of 13

  • fraction numerator square root of 13 over denominator 3 end fraction

  • 1

  • 3

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172.

If straight x space plus space 1 over straight x space equals space 2 comma then the value of straight x to the power of 99 space plus space 1 over straight x to the power of 99 minus 2 is:

  • -2

  • 0

  • 2

  • 4

38 Views

173.

If 2 straight x space minus space fraction numerator 1 over denominator 2 straight x end fraction space equals space 5 comma straight x not equal to 0 then the value of straight x squared space plus space fraction numerator 1 over denominator 16 straight x squared end fraction minus 2 is

  • 19 over 4

  • 23 over 4

  • 27 over 4

  • 31 over 4

36 Views

174.

If straight a space plus space 1 over straight b space equals space 1 comma space space space straight b space plus space 1 over straight c space equals space 1, then the value of abc is:

  • 0

  • -1

  • 1

  • ab

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175.

If 2 straight x space plus space fraction numerator 1 over denominator 4 straight x end fraction space equals space 1 comma then straight x squared space plus space fraction numerator 1 over denominator 64 straight x squared end fraction is

  • 0

  • 1

  • 1 fourth

  • 2

41 Views

176.

If square root of straight x space minus space square root of straight y space equals space 1 comma   square root of straight x space plus space square root of straight y space equals space 17 comma  then square root of xy space equals space ?

  • square root of 72

  • 72

  • 32

  • 24

35 Views

177.

If straight x space equals space square root of 3 space plus space fraction numerator 1 over denominator square root of 3 end fraction comma then the value of  open parentheses straight x space minus space fraction numerator square root of 126 over denominator square root of 42 end fraction close parentheses space open parentheses straight x minus fraction numerator 1 over denominator straight x minus begin display style fraction numerator 2 square root of 3 over denominator 3 end fraction end style end fraction close parentheses space is colon

  • fraction numerator 5 square root of 3 over denominator 6 end fraction

  • fraction numerator 2 square root of 3 over denominator 3 end fraction

  • 5 over 6

  • 2 over 3

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178.

If straight c space plus space 1 over straight c space equals space 3 comma then the value of left parenthesis straight c minus 3 right parenthesis to the power of 7 space plus space 1 over straight c to the power of 7 is

  • 2

  • 0

  • 3

  • 1


B.

0

straight c space plus space 1 over straight c space equals space 3
Subtracting (3) from both sides,
left parenthesis straight c minus 3 right parenthesis space plus space 1 over straight c space equals space 3 space minus space 3
left parenthesis straight c space minus space 3 right parenthesis space plus space 1 over straight c space equals space 0
therefore space space left parenthesis straight c minus 3 right parenthesis to the power of 7 space plus space 1 over straight c to the power of 7 space equals space 0

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179.

If straight a space equals space square root of 2 space plus space 1  and  straight b space equals space square root of 2 minus 1 comma space then the value of fraction numerator 1 over denominator straight a plus 1 end fraction space plus space fraction numerator 1 over denominator straight b plus 1 end fraction will be

  • 0

  • 1

  • 2

  • -1

34 Views

180.

If  then find the value of  is

  • 3

  • 2

  • 1

  • 0

40 Views

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