Cos^2 27

To find \(\cos^2(27^\circ)\), you can first calculate \(\cos(27^\circ)\) and then square the result. Using a calculator or trigonometric tables: \[ \cos(27^\circ) \approx 0.848 \] Now, squaring this value: \[ \cos^2(27^\circ) \approx (0.848)^2 \approx 0.719 \] So, \(\cos^2(27^\circ) \approx 0.719\). If you require a more precise value, please use a scientific calculator or software capable of high-precision calculations.