Simplification Questions Practice Question and Answer

Q:

рд╕рд░рд▓ рдХрд░реЗрдВ $$ {(7) ^{2} ├╖(7^{1\over 2})^{4}}$$

752 0

  • 1
    $$ {1\over 14}$$
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    14
    Correct
    Wrong
  • 4
    7
    Correct
    Wrong
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Answer : 2. "1"

Q:

рдпрджрд┐ (a + b):(b + c):(c + a) = 7:6:5┬ардФрд░┬аa + b + c = 27, рддреЛ┬а1/a: 1/b :1/c рдХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реЛрдЧрд╛?

985 0

  • 1
    3:6:4
    Correct
    Wrong
  • 2
    3:2:4
    Correct
    Wrong
  • 3
    4:3:6
    Correct
    Wrong
  • 4
    3:4:2
    Correct
    Wrong
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Answer : 3. "4:3:6 "

Q:

рд╕рд░рд▓ рдХреАрдЬрд┐рдП┬а$$ {(2x)^{2}-(2y)^{2}-(4x)^{2}}$$

771 0

  • 1
    $$ {(12x^{2}-4y^{2})}$$
    Correct
    Wrong
  • 2
    $$ {(12x^{2}+4y^{2})}$$
    Correct
    Wrong
  • 3
    $$ {-12x^{2}+4y^{2}}$$
    Correct
    Wrong
  • 4
    $$ {-12x^{2}-4y^{2}}$$
    Correct
    Wrong
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Answer : 4. "$$ {-12x^{2}-4y^{2}}$$"

Q:

$$ {0.55 ├Ч 4.5\over 0.81}$$┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

667 0

  • 1
    $$ {55\over 18}$$
    Correct
    Wrong
  • 2
    3.05
    Correct
    Wrong
  • 3
    $$ {55\over 81}$$
    Correct
    Wrong
  • 4
    3.555
    Correct
    Wrong
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Answer : 1. "$$ {55\over 18}$$"

Q:

рдпрджрд┐┬а$$ {\sqrt{1+{473\over{256}}}=1+{x\over 16}}$$┬а┬ард╣реИ рддреЛ┬аx┬ардмрд░рд╛рдмрд░ рд╣реИтАФ

987 0

  • 1
    11
    Correct
    Wrong
  • 2
    12
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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Answer : 1. "11"

Q:

рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рд╕рдореАрдХрд░рдг рдХреЛ рд╕рд░рд▓ рдХреАрдЬрд┐рдПред
$$ {\sqrt{(1-sin^{2}╬╕) ├╖{(1-cos^{2}╬╕)}}}$$

754 0

  • 1
    tan ╬╕
    Correct
    Wrong
  • 2
    cot ╬╕
    Correct
    Wrong
  • 3
    sec ╬╕
    Correct
    Wrong
  • 4
    cosec ╬╕
    Correct
    Wrong
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Answer : 2. "cot ╬╕"

Q:

$$ {\sqrt{6-\sqrt{17-2\sqrt{72}}}}$$┬ардХрд╛ рдирд┐рдХрдЯрддрдо рдорд╛рди рд╣реИред

786 0

  • 1
    2.1
    Correct
    Wrong
  • 2
    2.7
    Correct
    Wrong
  • 3
    2.4
    Correct
    Wrong
  • 4
    1.8
    Correct
    Wrong
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Answer : 3. "2.4"

Q:

рдпрджрд┐┬а1.5 a=0.04 b┬ард╣реИ рддреЛ $$ {b-a\over b+a}$$.

882 0

  • 1
    $$ {77\over 33}$$
    Correct
    Wrong
  • 2
    $$ {73\over 77}$$
    Correct
    Wrong
  • 3
    $$ {2\over 75}$$
    Correct
    Wrong
  • 4
    $$ {75\over 2}$$
    Correct
    Wrong
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Answer : 2. "$$ {73\over 77}$$"

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