Question

Formulae for alpha square plus beta square

Answer 1

Hi ,

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We know the algebraic identity,

a² + b² + 2ab = ( a + b )²

Or

a² + b² = ( a + b )² - 2ab

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Now ,

( Alfa )² + ( beta )²

= ( Alfa + beta )² - 2 × Alfa × beta

I hope this helps you.

: )

Answer 2

Step-by-step explanation: (alpha + beta)² - 2 × alpha × beta