Answer
The calculator displays error message.
This is because here we are trying finding an angle B, such that sin B = 4.321, but for any angle, sin can have a numeric value between 0 and ±1 only. i.e for any angle $\theta$-
$-1\leq \sin\theta\leq+1$
Work Step by Step
The calculator displays error message when we try to find B for sin B = 4.321.
This is because here we are trying finding an angle B, such that sin B = 4.321 by pressing 4.321 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 4.321.
For any angle $\theta$-
$-1\leq \sin\theta\leq+1$
