Find `vec(A).vec(b)` when (i) `vec(a)=hat(i)-2hat(j)+hat(k)` and `vec(b)=3 hat(i)-4 hat(j)-2 hat(k)` (ii) `vec(a)=hat(i)+2hat(j)+3hat(k)` and `vec(b)=

Question

Find `vec(A).vec(b)` when (i) `vec(a)=hat(i)-2hat(j)+hat(k)` and `vec(b)=3 hat(i)-4 hat(j)-2 hat(k)` (ii) `vec(a)=hat(i)+2hat(j)+3hat(k)` and `vec(b)=

Find `vec(A).vec(b)` when
(i) `vec(a)=hat(i)-2hat(j)+hat(k)` and `vec(b)=3 hat(i)-4 hat(j)-2 hat(k)`
(ii) `vec(a)=hat(i)+2hat(j)+3hat(k)` and `vec(b)=-2hat(j)+4hat(k)`
(iii) `vec(a)=hat(i)-hat(j)+5hat(k)` and `vec(b)=3 hat(i)-2 hat(k)`

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - (i) 9 (ii) 8 (iii) -7

5 views Answered 2023-02-05 15:29