# let A_(mxn) matrix , c scalar If cA=0, then Select one: a. c=0 and A=0 b. c=0 or A=0 C. C<0 or A=0 d. c>0 or A=0

let ${A}_{mxn}$ matrix , c scalar
If cA=0, then
Select one:
a. c=0 and A=0
b. c=0 or A=0
C. C<0 or A=0
d. c>0 or A=0
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Brooklyn Mcintyre
Step 1
WE have to check the meaning of cA=0.
Step 2
HERE scalar multiplication is given cA
Then if cA=0 then either c=0 or A=0
Hence option B is correct : b) c=0 or A =0