Science (English Medium) कक्षा ११ - CBSE Question Bank Solutions for Mathematics

\[(\sqrt{- 2})(\sqrt{- 3})\] is equal to

The argument of \[\frac{1 - i\sqrt{3}}{1 + i\sqrt{3}}\] is

If \[z = \left( \frac{1 + i}{1 - i} \right)\] then z⁴ equals

If \[z = \frac{1 + 2i}{1 - (1 - i )^2}\], then arg (z) equal

\[\text { If } z = \frac{1}{(2 + 3i )^2}, \text { than } \left| z \right| =\]

\[\text { If } z = \frac{1}{(1 - i)(2 + 3i)}, \text { than } \left| z \right| =\]

\[\text { If  }z = 1 - \text { cos }\theta + i \text { sin }\theta, \text { then } \left| z \right| =\]

If \[z = \frac{1}{1 - cos\theta - i sin\theta}\] then Re (z) =

If \[x + iy = \frac{3 + 5i}{7 - 6i},\]  then y =

If θ is the amplitude of \[\frac{a + ib}{a - ib}\] , than tan θ =

If \[z = \frac{1 + 7i}{(2 - i )^2}\] , then

The amplitude of \[\frac{1}{i}\] is equal to

The argument of \[\frac{1 - i}{1 + i}\] is

The amplitude of \[\frac{1 + i\sqrt{3}}{\sqrt{3} + i}\] is 

The value of (i⁵ + i⁶ + i⁷ + i⁸ + i⁹) / (1 + i) is

\[\frac{1 + 2i + 3 i^2}{1 - 2i + 3 i^2}\] equals

The value of \[\frac{i^{592} + i^{590} + i^{588} + i^{586} + i^{584}}{i^{582} + i^{580} + i^{578} + i^{576} + i^{574}} - 1\] is 

The value of \[(1 + i )^4 + (1 - i )^4\] is

If \[z = a + ib\]  lies in third quadrant, then \[\frac{\bar{z}}{z}\] also lies in third quadrant if

If \[f\left( z \right) = \frac{7 - z}{1 - z^2}\] , where \[z = 1 + 2i\] then \[\left| f\left( z \right) \right|\] is