A) 2
B) \[2a\]
C) \[4a\]
D) \[8a\]
Correct Answer: C
Solution :
In\[\Delta ABC,\]we have \[\tan \theta -\frac{y}{x}\] ...(i) In\[\Delta BCD,\]we have \[\tan (90{}^\circ -\theta )=\frac{y}{CD}\] \[\Rightarrow \] \[CD=y\,\tan \theta =\frac{{{y}^{2}}}{x}\] [using Eq. (i)] \[\Rightarrow \] \[CD=\frac{4ax}{x}=4a\]You need to login to perform this action.
You will be redirected in
3 sec