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JEEMAIN and NEET
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Mathematics
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Class11
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Complex Numbers and Quadratic Equations
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Q)
If $\large\frac{c+i}{c-i}$$=a+ib$, then $a^2+b^2$ = ?
(A) 1
(B) $1+c^2$
(C) $c^2$
(D) $1-c^2$
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