10th Class
Mathematics
Introduction to Trigonometry
Question Bank
Introduction to Trigonometry
question_answer
The value of \[\mathbf{tan}\,\mathbf{10}{}^\circ .\mathbf{tan}\text{ }\mathbf{20}{}^\circ .\mathbf{tan}\,\mathbf{30}{}^\circ .\mathbf{tan}\,\mathbf{45}{}^\circ .\]\[\mathbf{tan}\,\mathbf{60}{}^\circ .\mathbf{tan}\,\mathbf{70}{}^\circ .\mathbf{tan}\,\mathbf{80}{}^\circ \]is: