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তিনটি ভেক্টর , →a,→B,→C যাদের মান যথাক্রমে 4,3 এবং 5, যোগ করলে শূন্য হয় অর্থ্যৎ →a+→B+→C=0 তাহলে |→C×(→a×→b)| এর মান ...

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  • Deprecated function: Return type of DatabaseStatementBase::execute($args = [], $options = []) should either be compatible with PDOStatement::execute(?array $params = null): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2244 of /home/eduvai/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/eduvai/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/eduvai/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/eduvai/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/eduvai/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/eduvai/public_html/includes/database/database.inc).
Question: 
তিনটি ভেক্টর , →a,→B,→C যাদের মান যথাক্রমে 4,3 এবং 5, যোগ করলে শূন্য হয় অর্থ্যৎ →a+→B+→C=0 তাহলে |→C×(→a×→b)| এর মান হলো :
Answer: 
60
12
60
60
15
Last Updated: 
18/09/2020 - 08:06

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এই প্রশ্নটি নিচের পরীক্ষাগুলোতে এসেছে

DU KA Unit Question Bank Physics 2018-19

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