(-4xyz) x (-2 x2y3z4 )
Answers
Answered by
0
Answer:
Consider
3x+4y+5z=6 ...(i)
2x+3y+4z=5 ...(ii)
x+2y+3z=4 ...(iii)
Therefore,
∣
∣
∣
∣
∣
∣
∣
∣
3
2
1
4
3
2
5
4
3
∣
∣
∣
∣
∣
∣
∣
∣
=3(9−8)−4(6−4)+5(4−3)
=3+5−(4×2)
=8−8
=0
Hence the above set of equations have infinitely number of planes.
Answer By
Step-by-step explanation:
hope it helps
Answered by
0
Answer:
ANSWER
Using multi-nomial theorem we get coefficient of
x
p
y
m
z
l
in (ax+by+cz)
n
=
p!m!l!
n!(a
p
b
m
c
l
)
...(i)
Substituting the value of n,m,l,p from above question to equation (i) we get,
coefficient of x
2
y
3
z
4
in (ax−by+cz)
9
=
2!3!4!
9!(a
2
(−b)
3
c
4
)
=−(140)(9)(a
2
b
3
c
4
)
=−1260(a
2
b
3
c
4
)
hope it helps I kn its not perfect but that's how I can write in a tab sorry
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