Given the matrices $A=\left[\begin{array}{lll}1 & 0 & 1 \\ 0 & 1 & 0 \\ 1 & 0 & 2\end{array}\right]$ and $B=\left[\begin{array}{lll}2 & 1 & 0 \\ 1 & 1 & 2 \\ 0 & 2 & 1\end{array}\right]$, then the minor $\boldsymbol{M}_{\mathbf{2 3}}$ of the matrix $\left(A B^{-1}\right)^{-1}$ is:
2
9
4
-9
The order and degree of the differential equation $\left(\frac{d y}{d x}\right)^2+\frac{d x}{d y}=x$ is:
$(1,1)$
$(1,2)$
$(2,1)$
$(1,3)$
A teacher has two jars of candy on her desk:
Jar 1: Contains 3 Strawberry candies and 2 Orange candies.
Jar 2: Contains 1 Strawberry candy and 4 Orange candies.
The teacher randomly picks two candies from Jar 1 and drops them into Jar 2.
Then, a student reaches into Jar 2 and picks two candies.
What is the probability that the student picks two Strawberry candies?
$\frac{6}{35}$
$\frac{4}{21}$
$\frac{3}{70}$
$\frac{1}{14}$
$$ \text { The direction ratios of the vector }(\hat{\imath}+\hat{\jmath}) \times(\hat{\jmath}+\hat{k}) \text { are } $$
$$ 1,0,1 $$
$$ 1,-1,1 $$
$$ 1,1,-1 $$
$$ 0,1,0 $$
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