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seropon [69]
3 years ago
6

Please me in math

a%20-%201%7D%5E%7B2%7D%20%7D%7Ba%20%2B%201%7D%20" id="TexFormula1" title=" \frac{a + 1}{a - 1} + \frac{ {a - 1}^{2} }{a + 1} " alt=" \frac{a + 1}{a - 1} + \frac{ {a - 1}^{2} }{a + 1} " align="absmiddle" class="latex-formula">
​
Mathematics
2 answers:
PIT_PIT [208]3 years ago
5 0

Step-by-step explanation:

hope this helps you thank you

dalvyx [7]3 years ago
5 0

\boxed{ \sf{Answer}}

\large{\sf\frac{a + 1}{a - 1}  +  \frac{ {a - 1}^{2} }{a + 1}}

Use the algebraic identities ⟶

  1. {\sf(a - b)(a + b) =  {a}^{2}  - b ^{2}}
  2. {\sf(a + b) {}^{2}  =  {a}^{2}  + 2ab -  {b}^{2}}
  3. {\sf(a - b) {}^{2}  =  {a}^{2}  - 2ab +  {b}^{2}}

Squaring on both the sides

{\sf\frac{(a + 1 {)}^{2}  + ( {a - 1)}^{2} }{(a - 1)(a + 1)}}

=\frac{ {a}^{2} + 2a + 1 +  {a}^{2} - 2a + 1  }{ {a}^{2} - 1 }  \\  =  \frac{ {a}^{2} +\bcancel 2a + 1 +  {a}^{2} - \bcancel2a + 1  }{ {a}^{2} - 1 } \\  =   \frac{ {a}^{2} +  {a}^{2} + 1 + 1  }{ {a}^{2}  - 1}

\large\boxed{\sf{⟹\frac{ {2a}^{2}  + 2}{ {a}^{2} - 1 }}}

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐

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