Question: 1) Explain why tan-1 3 is defined but cos-1 3 is undefined. Evaluate the expression without using a calculator. Give your answer in both radians

1) Explain why tan-1 3 is defined but cos-1 3 is undefined. Evaluate the expression without using a calculator. Give your answer in both radians and degrees. 2) tan-' (-1) 3) cos-1 (-2) 4) sin-1 5) cos-! NI (-2) Use a calculator to evaluate the expression in both radians and degrees. (Round answers to the nearest hundredth.) 6) sin-1 0.18 7) cos-10.36 8) tan-! (-0.75) 9) sin-1 0.8 Solve the equation for 0. (Round answers to the nearest tenth.) 10) cos 0 = -0.82; 180

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