List of top Mathematics Questions asked in Karnataka PGCET

The value of \(\cos \left( \frac12 \cos^-1 \frac18 \right)\) is:

The value of \[ \cos^2 x + \cos^2 \left(x + \frac\pi3\right) + \cos^2 \left(x - \frac\pi3\right) \] is: