How To Solve Limits Fast Using Casio Fx-991 CW Trick/Technique (New Method!)

LIMITS CALCULATOR TECHNIQUE/TRICK: Casio fx-991 cw | Calculator method for Calculus
Limits is one of the problems in calculus that can be solved using Casio fx-991 cw.
In this video, I explained and showed how you can solve limits using Casio fx-991 ew or casio fx-570 cw scientific calculator as a trick or hack
After watching this video, you will be able to solve problems involving Limits using casio fx-991 cw or casio fx-570 cw scientific calculator as a trick or hack easily and fast especially for multiple choice questions.
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why my result is -1.33x10^-5?

[@CASIOCALCULATORTUTOR]

Put the calculator in radian