MCQ
$\int_{}^{} {\frac{1}{{{{\cos }^{ - 1}}x.\sqrt {1 - {x^2}} }}dx = } $
- A$\log ({\cos ^{ - 1}}x) + c$
- ✓$ - \log ({\cos ^{ - 1}}x) + c$
- C$ - \frac{1}{{2{{({{\cos }^{ - 1}}x)}^2}}} + c$
- Dએકપણ નહિ.
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$f(x)=\left\{\begin{array}{ll}\int \limits_{0}^{x}(5-|t-3|) d t, & x>4 \\ x^{2}+b x & , x \leq 4\end{array}\right.$ જ્યાં $b \in R$ જો $f$ એ $x=4$ આગળ સતત હોય, તો નીચેના પૈકી કયું વિધાન સાચું નથી ?
probabiliky that $X_1$ and $X_3$ are within earshot of each other is, Here, $\left.{ }^n C_r=\frac{n !}{(n-r) ! r !}\right)$