evaluate the following using suitable identity :211×189
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211×189
=(200+11)*(200-11)
a sq - b sq ( identity )
=200sq - 11sq
=40000-121
=39879
....
hope it helps
plz mark as brainiest
=(200+11)*(200-11)
a sq - b sq ( identity )
=200sq - 11sq
=40000-121
=39879
....
hope it helps
plz mark as brainiest
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