+118723 There is nothing about this question that makes sense.
I assume that you mean $$cos^{-1}1.6875$$ There certainly should not be a multiply sign in there.
However is still does not make sense because cos ratios must be between -1 and +1 inclusive.
1.6875 is outsided this restricted region!
+118723 There is nothing about this question that makes sense.
I assume that you mean $$cos^{-1}1.6875$$ There certainly should not be a multiply sign in there.
However is still does not make sense because cos ratios must be between -1 and +1 inclusive.
1.6875 is outsided this restricted region!
