Exemplar Exercise Problems XIII — task. Mathematics CBSE, Class 9.

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Expand the following:

1. \((3a-2b)^3=\)

{i a}^{3} + i b^{3} + i a^{2} b + {i ab}^{2}

2. \((\frac{1}{x}+\frac{y}{3})^3=\)

\frac{i}{x^{3}} + \frac{y^{3}}{i} + \frac{i}{x^{2}} + \frac{y^{2}}{{i x}^{2}}

3. \((4-\frac{1}{3x})^3=\)

i + \frac{i}{i x^{3}} + \frac{i}{x} + \frac{i}{i x^{2}}

Did you find an error?

40. Exemplar Exercise Problems XIII