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Which of the following is/are CORRECT ....

Which of the following is/are CORRECT
. A) If one root of the equation `x^(2)-sqrt(5)x-19=0` is `(9-sqrt(5))/(2)` ,then the other root is `(-9+sqrt(5))/(2)`
B) If one root of the equation `x^(2)-sqrt(5)x-19=0`is `(9-sqrt(5))/(2)` ,then the other root is `(9+sqrt(5))/(2)`
C) If one root of the equation `x^(2)-ix-(1+i)=0`,`(i=sqrt(-1))` is 1+i find the other root -1
D) If one root of the equation `x^(2)-ix-(1+i)=0`,`(i=sqrt(-1))` is 1+i find the other root 1-i

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