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MBSTU-C_11-12
HSC - উচ্চতর গণিত ১ম পত্র
→
অধ্যায়-০২ঃ ভেক্টর (HSC - গণিত)
→
সরলরৈখিক ভেক্টর
যদি,
O
→
A
=
2
i
^
+
3
j
^
−
4
k
^
\overrightarrow{\mathrm{O}} \mathrm{A}=2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}}
O
A
=
2
i
^
+
3
j
^
−
4
k
^
এবং
O
B
→
=
4
i
^
−
3
j
^
+
2
k
^
\overrightarrow{\mathrm{O} B}=4 \hat{\mathrm{i}}-3 \hat{\mathrm{j}}+2 \hat{\mathrm{k}}
O
B
=
4
i
^
−
3
j
^
+
2
k
^
হয় তবে
∣
A
B
→
∣
=
?
|\overrightarrow{\mathrm{A} B}|=?
∣
A
B
∣
=
?
A.
19
\sqrt{19}
19
B.
2
20
2 \sqrt{20}
2
20
C.
2
19
2 \sqrt{19}
2
19
D.
20
\sqrt{20}
20
Guide Answer
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