Math, asked by anjanababu068, 5 months ago

(√3-1)²-(√3+1)²
step explanation pls​

Answers

Answered by macdisha19
0

Answer:

plssss mark brainliest

Attachments:
Answered by mathdude500
0

Given Question :-

\sf \:Evaluate \:   (√3-1)²-(√3+1)²

___________________________________________

☆Required Answer:-

\sf \:   - 4 \sqrt{3}

☆Identity used :-

\sf \:  ⟼(a + b)² = a² + 2ab + b² \\ \sf \:  ⟼ \: (a - b)² = a² - 2ab + b² \\ \sf \:  ⟼ \: </h3><h3>a² - b² = (a + b)(a - b)

_____________________________________

☆Explanation:-

\sf \:  Consider \: (√3-1)²-(√3+1)²

\sf \: {( \sqrt{3} )}^{2}  +  {1}^{2}  - 2 \times 1 \times  \sqrt{3}  - ( {( \sqrt{3} )}^{2}  + 1 + 2 \times 1 \times  \sqrt{3} )

\sf \:  ⟼3 + 1 - 2 \sqrt{3}  - (3 + 1 + 2 \sqrt{3} )

\sf \:  ⟼ \: 4 - 2 \sqrt{3}  - 4 - 2 \sqrt{3}

\sf \:  ⟼ \:  -  \: 4 \sqrt{3}

\begin{gathered}\bf\blue{Hence}\end{gathered}

\large{\boxed{\boxed{\sf{∴ \: (√3-1)²-(√3+1)² =  - 4 \sqrt{3} }}}}

__________________________________________

Similar questions