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JEE MAIN_2021_
27-8-2021_S2
Question
Two poles, $A B$ of length a metres and $C D$ of length $a+b(b \neq a)$ metres are erected at the same horizontal level with bases at $B$ and $D$. If $B D=x$ and $\tan \angle A C B=\frac{1}{2}$, then:
Select the correct option:
A
$x^2+2(a+2 b) x-b(a+b)=0$
B
$x^2+2(a+2 b) x+a(a+b)=0$
C
$x^2-2 a x+b(a+b)=0$
D
$x^2-2 a x+a(a+b)=0$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Mathematics
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