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OpenStudy (anonymous):
The no. of non-diagonal matrices of order 4 satisfying A^2 = A is a) 2 b) 4 c) 16 d) 15
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OpenStudy (donnie1999):
a
OpenStudy (anonymous):
how
OpenStudy (donnie1999):
2^2 = 4
OpenStudy (anonymous):
can you explain it i can't understand a bit
OpenStudy (anonymous):
please explain i need to know
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OpenStudy (anonymous):
guy's tell me the answer, the right answer in question paper was (d)
OpenStudy (anonymous):
@donnie1999 tell me how i can solve this
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