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SB_2023
HSC - পদার্থ বিজ্ঞান ১ম পত্র
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অধ্যায়-০২ঃ ভেক্টর
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All Topics
∣
A
→
∣
=
2
,
∣
B
⃗
∣
=
4
|\overrightarrow{\mathbf{A}}|=2,|\vec{B}|=4
∣
A
∣
=
2
,
∣
B
∣
=
4
এবং
A
→
⋅
B
→
=
4
\overrightarrow{\mathbf{A}} \cdot \overrightarrow{\mathbf{B}}=4
A
⋅
B
=
4
হলে
A
→
\overrightarrow{\mathbf{A}}
A
ও
B
→
\overrightarrow{\mathbf{B}}
B
এর মধ্যবর্তী কোণ-
A.
3
0
∘
30^{\circ}
3
0
∘
B.
6
0
∘
60^{\circ}
6
0
∘
C.
9
0
∘
90^{\circ}
9
0
∘
D.
12
0
∘
120^{\circ}
12
0
∘
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