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Higher Secondary Question Paper Solution of Year 2018 Question No: A.2.(d)(ii)

ধরা যাক \(\overrightarrow a = \hat i + 4\hat j + 2\hat k, \overrightarrow b =3\hat i - 2\hat j + 7\hat k\), এবং \(\overrightarrow c = 2\hat i - \hat j + 4\hat k\) একটি ভেক্টর \(\overrightarrow d\) নির্ণয় করো, যেটি \(\overrightarrow a\) ও \(\overrightarrow b\)  উভয়ের উপর লম্ব এবং \(\overrightarrow c . \overrightarrow d = 18\)

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