यदि A एक 3x3 कोटि का वर्ग आव्यूह है तो | KAका मान होन:
(A) K(A) (B) squire squire (C) PAI (D) 3kA
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Disadvantages of using ""plastics""
are:
They pollute our environment.
They pose a danger to wildlife.
They do not degrade quickly.
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