Finding indices of certain values

I have a matrix A=[ 1 2; 4 5; 0 0; 7 8;0 0]

i want to find the row number wherein both the coloumns are 0 0

i tried [ r,~] =find(A==[0 0])

but it returns me 3 5 3 5 whereas the output for me should be just 3 5

it would be great if you can spare some time and help me out with this.

[madhan ravi]

Urgent

Answer 1

[madhan ravi]

 find(all(A == 0, 2))

[Anurag Gupta]

Sorry mate if the tag irritates you. anyways thanks for answering.