10th Class
Mathematics
Introduction to Trigonometry
Question Bank
Introduction to Trigonometry
question_answer
If\[\mathbf{cos}\,\mathbf{3}x\mathbf{=4}\,\mathbf{co}{{\mathbf{s}}^{\mathbf{3}}}\mathbf{30{}^\circ }-\mathbf{3co}{{\mathbf{s}}^{\mathbf{3}}}\mathbf{0{}^\circ }\]then the value of x is ________