![Just wondering why my calculator is not giving a result for tan-1(-2/0). The correct answer is apparently meant to be -pi/2 radians. Mode is set radians. : r/EngineeringStudents Just wondering why my calculator is not giving a result for tan-1(-2/0). The correct answer is apparently meant to be -pi/2 radians. Mode is set radians. : r/EngineeringStudents](https://i.redd.it/hi4j8vrkndb71.jpg)
Just wondering why my calculator is not giving a result for tan-1(-2/0). The correct answer is apparently meant to be -pi/2 radians. Mode is set radians. : r/EngineeringStudents
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Use a calculator to approximate the value of the expression. Round your answer to the nearest hundredth. tan^(-1) 5.9. | Homework.Study.com
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![SOLVED: QUESTION 1 [15 marks] (a) Without using a calculator, find the exact value of Cos2550 cos1950 cos(1809) [Hint: Use sum-to-product formula to simplify]: [3] (b) Without using calculator; find the exact SOLVED: QUESTION 1 [15 marks] (a) Without using a calculator, find the exact value of Cos2550 cos1950 cos(1809) [Hint: Use sum-to-product formula to simplify]: [3] (b) Without using calculator; find the exact](https://cdn.numerade.com/ask_images/4cea4ddc81a94fde914f2e43ee3c462f.jpg)