Question

(a+b)²=
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Answer 1

Answer:

$( {a}^{2} + {b}^{2} ) = (a + b)(a + b)$

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Answer 2

Answer:

The invention of radio communication, although generally attributed to Guglielmo Marconi in the 1890s, spanned many decades and involved many people, whose work included experimental investigation of radio waves, establishment of theoretical underpinnings, engineering and technical developments, and adaptation to ...

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