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The number of complex numbers z such that `|z-1|=|z+1|=|z-i|` is |
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Answer» Correct Answer - D `|a|b|c|d|` For the number to be divisible by 11, `a+c-(b+d)` should be a multiple of 11. `because a,b,c,d in{1,2,3,4}` `therefore a+c-b-d=0impliesa+c=b+d` `a+c` can vary from 2 to 8. `{:("Number of ways"=1xx1(a+c=2)),( " "=2xx2(a+c=3)),(" "=3xx3(a+c=4)),(" "=4xx4(a+c=5)),(" "=3xx3(a+c=6)),(" "=2xx2(a+c=7)),(" "=1xx1(a+c=8)):}` |
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