1
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a $\triangle A B C$, if $r_1=4, r_2=8$ and $r_3=24$, then $a: b: c=$

A

$4: 7: 9$

B

$2: 3: 5$

C

$1: 2: 6$

D

$6: 2: 1$

2
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a $\triangle A B C,\left(r_2+r_3\right) \operatorname{cosec}^2\left(\frac{A}{2}\right)=$

A

$4 R \cot \left(\frac{A}{2}\right)$

B

$2 R \cot ^2\left(\frac{A}{2}\right)$

C

$\frac{4 R}{\tan ^2\left(\frac{A}{2}\right)}$

D

$\frac{2 R}{\tan \left(\frac{A}{2}\right)}$

3
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$A, B, C$ and $D$, are any four points. If $E$ and $F$ are mid-points of $A C$ and $B D$ respectively, then $\mathbf{A B}+\mathbf{C B}+\mathbf{C D}+\mathbf{A D}=$

A

EF

B

$2 E F$

C

3 EF

D

$4 E F$

4
TG EAPCET 2025 (Online) 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The four points whose position vectors are given by $2 a+3 b-c, a-2 b+3 c, 3 a+4 b-2 c$ and $a-6 b+6 c$ are

A

collinear

B

coplanar

C

Vertices of a square

D

Vertices of a rectangle

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