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Q:

$$ {a^2-b^2-2bc-c^2}\over{a^2+b^2+2ab-c^2}$$ के बराबर है।

  • 1
    $$ {a-b-c}\over{a+b-c}$$
  • 2
    $$ {a-b+c}\over{a+b-c}$$
  • 3
    $$ {a-b-c}\over{a+b+c}$$
  • 4
    $$ {a-b-c}\over{a+b-c}$$
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Answer : 1. "$$ {a-b-c}\over{a+b-c}$$"

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