→P(→Q+→R)=→P.→Q +→P.→R ,

\underset{P}{\to} + \underset{Q}{\to} = \underset{Q}{\to} + \underset{P}{\to}

(\underset{P}{\to} + \underset{Q}{\to}) + \underset{R}{\to} = \underset{P}{\to} + (\underset{Q}{\to} + \underset{R}{\to})

,

\underset{P}{\to} + \underset{Q}{\to} = \underset{P}{\to} . \underset{Q}{\to}

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বিশ্ববিদ্যালয় ভর্তিযুদ্ধে প্রস্তুতির এক অনন্য মাধ্যম।

নিচের কোনটি ভেক্টরের বিনিময় সূত্র?

$\underset{P}{\to} (\underset{Q}{\to} + \underset{R}{\to}) = \underset{P}{\to} . \underset{Q}{\to} + \underset{P}{\to} . \underset{R}{\to}$

$\underset{P}{\to} + \underset{Q}{\to} = \underset{Q}{\to} + \underset{P}{\to}$

$(\underset{P}{\to} + \underset{Q}{\to}) + \underset{R}{\to} = \underset{P}{\to} + (\underset{Q}{\to} + \underset{R}{\to})$

$\underset{P}{\to} + \underset{Q}{\to} = \underset{P}{\to} . \underset{Q}{\to}$

প্রশ্নের বর্ণনাঃ শীঘ্রই আসছে...