Semiconductor Devices And Logic Gates

In the study of transistor as an amplifier if \(\alpha=\frac{I_C}{I_E}=0.98\) and \(\beta=\frac{I_C}{I_B}=49\), where \(I_C, I_B\) and \(\mathrm{I}_{\mathrm{E}}\) are collector, base and emitter current respectively then \(\left(\frac{1}{\alpha}-\frac{1}{\beta}\right)\) is equal to