Q.If \(x = \sin^2 30^\circ + 4 \cot^2 45^\circ - \sec^2 60^\circ\), find the value of \(x\).

Given: \[ x^2 = \sin^2 30^\circ + 4 \cot^2 45^\circ - \sec^2 60^\circ \] Now, \[ x^2 = \left(\frac{1}{2}\right)^2 + 4(1)^2 - 2^2 = \frac{1}{4} + 4 - 4 = \frac{1}{4} \] So, \[ x = \sqrt{\frac{1}{4}} = \pm \frac{1}{2} \]
Similar Questions