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Let
A=x^2yi−2xzj+2yzk
, find Curl curl A.

3j+4k

2x+2)k

(2x+2)j

3j−4k
Let
ϕ=2x^z^4−x^2y
,find
|▽ϕ|

5(√97)

3(√112)

(√105)

2(√93)
4 Evaluate
(A+B).(A−B)
if
A=2i−3j+5k
and
B=3i+j−2k
20
22
24
26
Find the gradient of the scalar field
ϕ=xy2z3

y2z3i+2xyz3j+3xy2z2k

y2z3i+2xy2z3j+3xy2z3k

y2z3i+xyz3j+xy2z2k

y2z3+2xyz3+3xy2z2
Let
A=i+3j−2k
and
B=4i−2j+4k
, find
(2A+B)(˙A−2B)
-14
-21
-10
-5
Simplify
(A+B).(B+C)×(C+A)

a). B×C

b). 2.A×B

c). 2.A×C

d). A×B×C
Let
A=i−2j−3k
,
B=2i+3j+k
and
C=i+3j−2k
, compute
A.(B×C)
15
5
10
20
If
A=i−2j−3k
,
B=2i+3j+k
and
C=i+3j−2k
, compute
|(A×B)×C|

2(√2)

5(√26)

3(√21)

4(√11)
Evaluate
|(A+B).(A−B)|
if
A=2i−3j+5k
and
B=3i+j−2k

√24

√240

√530

√525
4 Evaluate
(A+B).(A−B)
if
A=2i−3j+5k
and
B=3i+j−2k
20
22
24
26
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