![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
![Solution 34657: Converting an Angle from Radian to Degree on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators. Solution 34657: Converting an Angle from Radian to Degree on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.](https://education.ti.com/images/kbase/c34657ss4.bmp)
Solution 34657: Converting an Angle from Radian to Degree on the TI-83 Plus and TI-84 Plus Family of Graphing Calculators.
![SOLVED: INSTRUCTION Have your calculator in RADIAN MODE. You can set radian mode by pressing the button called MODE, SET UP, DRG (degree, radian, gradian). Let Q1, Q2 be real with V-1 SOLVED: INSTRUCTION Have your calculator in RADIAN MODE. You can set radian mode by pressing the button called MODE, SET UP, DRG (degree, radian, gradian). Let Q1, Q2 be real with V-1](https://cdn.numerade.com/ask_images/e8ac660ef29a47ee93aa20d2ed543c45.jpg)
SOLVED: INSTRUCTION Have your calculator in RADIAN MODE. You can set radian mode by pressing the button called MODE, SET UP, DRG (degree, radian, gradian). Let Q1, Q2 be real with V-1
![16 Printable radians calculator Forms and Templates - Fillable Samples in PDF, Word to Download | pdfFiller 16 Printable radians calculator Forms and Templates - Fillable Samples in PDF, Word to Download | pdfFiller](https://www.pdffiller.com/preview/42/902/42902640.png)