MCQOPTIONS
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| 1. |
If \[z(1+a)=b+ic\]and \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}=1\],then \[[(1+iz)/(1-iz)]=\] |
| A. | \[\frac{a+ib}{1+c}\] |
| B. | \[\frac{b-ic}{1+a}\] |
| C. | \[\frac{a+ic}{1+b}\] |
| D. | none of these |
| Answer» B. \[\frac{b-ic}{1+a}\] | |