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Question

If one root of x2(3+2i)x+(1+3i)=0 is 1+i , where i=1 , then the other root is

A
1i
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B
2+i
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C
3+i
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D
1+3i
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Solution

The correct option is B 2+i
Sum of two roots is given by ba
Let k be the other root then k+1+i=3+2i
which implies that k=2+i.

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