cos{cos-1(-/-3/2) + pie/6} Share with your friends Share 0 Varun.Rawat answered this coscos-1-32 + π6=coscos-132 +π6 as, cos-1-θ = cos-1θ=coscos-1cos π6 + π6= cos π6 + π6=cos π3= 12 -1 View Full Answer