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\vec{A} = 4 \hat{i} + 3 \hat{j} - 5 \hat{k}

\vec{B} = 2 \hat{i} + \hat{j} + 3 \hat{k}

\vec{A} ও \vec{B}

এর মধ্যবর্তী কোণ কত?

94.7 °

96.8 % °

98.7 °

99.3 °

ANS : 3

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