JEE Main 2021 (27 Aug, Shift 2) Maths Q80: Two poles AB of…

Question

Two poles, AB of length a metres and CD of length $a + b$ ($b 
eq a$) metres are erected at the same horizontal level with bases at B and D. If $BD = x$ and $	an\underline{\lfloor ACB} = \frac{1}{2}$, then :

Accepted Answer

Option 3: $x^2 - 2ax + b(a + b) = 0$

Answer

$x^2 + 2(a + 2b)x - b(a + b) = 0$

Answer

$x^2 - 2ax + a(a + b) = 0$

Answer

$x^2 - 2ax + b(a + b) = 0$

Answer

$x^2 + 2(a + 2b)x + a(a + b) = 0$

JEE Main 27 August 2021, Shift 2, Maths Q80