MCQ
મુખ્ય કિંમત શોધો : $\tan ^{-1}(-1)$
- A$-\frac{\pi}{6}$
- B$\frac{\pi}{4}$
- C$-\frac{\pi}{2}$
- ✓$-\frac{\pi}{4}$
Then, $\tan y=-1=-\tan \left(\frac{\pi}{4}\right)=\tan \left(-\frac{\pi}{4}\right)$
We know that the range of the principal value branch of $\tan ^{-1}$ is $\left(-\frac{\pi}{2}, \frac{\pi}{2}\right)$ and $\tan \left(-\frac{\pi}{4}\right)=-1$
Therefore, the principal value of $\tan ^{-1}(-1)$ is $-\frac{\pi}{4}$
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| $Face :$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
| $P(F)$ | $0.2$ | $0.22$ | $0.11$ | $0.25$ | $0.05$ | $0.17$ |
The die is tossed and you are told that either face $4$ or face $5$ has turned up. The probability that it is face $4$ is