COS(degree) error in CAS !?

Leif Andersen shared this question 3 years ago

Answered

Cant get the COS(x) function to work if I want the answer in degrees.

It answers 3*360 too much. 48,19 degrees will show up as 1128,19 degrees !?!?!

SIN(x) and TAN(x) works fine

I do remember to type degree ! (see picture)

Any explanation or solution ?

Comments (1)

Michael Borcherds ● 3 years ago

Try

NSolve(cos(v°)=(4)/(6))

Solve(cos(v°)=(4)/(6))

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