I keep getting “Radians vs degrees” questions wrong in Trigonometry. What's the trap?
using degrees in derivative/limit formulas.
The usual trap: using degrees in derivative/limit formulas. How to avoid it: always switch to radians before differentiating trig functions. Go back to the definition — angles can be measured in degrees or radians (π rad = 180°); calculus formulas assume radians.
Key point
Radians vs degrees
Common mistake
using degrees in derivative/limit formulas.
Memory tip
always switch to radians before differentiating trig functions.
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