Answer
The calculator displays error message.
It displays error because for any angle, sin can have a numeric value between 0 and ±1 only, i.e.
$-1\leq \sin\theta\leq+1$
Work Step by Step
The calculator displays error message when we try to find A for sin A = 1.234.
This is because here we are trying finding an angle A, such that sin A = 1.234 by pressing 1.234 first and then $\sin^{-1}$, but for any angle, sin can have a numeric value between 0 and ±1 only and no such angle exists for which sin A can have a value of 1.234.
For any angle $\theta$-
$-1\leq \sin\theta\leq+1$
