1
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
In a $\triangle A B C$, if $a=26, b=30, \cos c=\frac{63}{65}$, then $c=$
A
2
B
4
C
6
D
8
2
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $H$ is orthocentre of $\triangle A B C$ and $A H=x ; B H=y$; $C H=z$, then $\frac{a b c}{x y z}=$
A
1
B
$\frac{a+b+c}{x+y+z}$
C
$\frac{a}{x}+\frac{b}{y}+\frac{c}{z}$
D
$\frac{a b+b c+c a}{x y+y z+z x}$
3
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
In a regular hexagon $A B C D E F, \mathbf{A B}=\mathbf{a}$ and $\mathbf{B C}=\mathbf{b}$, then $F A=$
A
$\mathbf{a}-\mathbf{b}$
B
$a+b$
C
$\mathbf{b}-\mathbf{a}$
D
$2 \mathbf{b}-\mathbf{a}$
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If the points with position vectors $(\alpha \hat{\mathbf{i}}+10 \hat{\mathbf{j}}+13 \hat{\mathbf{k}}),(6 \hat{\mathbf{i}}+11 \hat{\mathbf{j}}+11 \hat{\mathbf{k}}),\left(\frac{9}{2} \hat{\mathbf{i}}+\beta \hat{\mathbf{j}}-8 \hat{\mathbf{k}}\right)$ are collinear, then $(19 \alpha-6 \beta)^2=$
A
16
B
36
C
25
D
49
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