Trig Identity All-In-One Solver with the TiNspire CX

To Solve Sum and Difference Angle Identities such as
sin(A+B)=sin(A)*cos(B)+cos(A)*sin(B) , etc
start the Trigonometry Made Easy app at and select option 7 as shown below:

Next enter the given sine or cosine values and the given quadrants, the solutions show automatically in the bottom box. See below:

And here view the two cosine solutions:

Couldn’t be any simple ūüėČ

TiNspire CX Limit Solver

Use belows Limit Solver when asked to find a constant for which a limit exists. Ex: What is a in (x^2+x-a) /(x-2) as x approaches 2?

To find the constant a for which the limit exists using the TiNspire CX CAS use Calculus Made Easy at , select option 6 in the Limits menu :

When entering the above example, we find the Limit to be 5 when the constant a=6 .