A) 50
B) \[25\sqrt{2}\]
C) \[50(\sqrt{6}-2)\]
D) \[25(\sqrt{2}-1)\]
Correct Answer: D
Solution :
[d] \[{{\sin }^{-1}}\frac{1}{3}={{\cot }^{-1}}2\sqrt{2}\] and \[{{\sin }^{-1}}\frac{1}{\sqrt{5}}={{\cot }^{-1}}2\] If C is the foot of the lower and h is the height, then \[AC=h.2\sqrt{2},\,\,CB=h.2,\,\,h(2\sqrt{2}+2)=50\] \[\Rightarrow h=25(\sqrt{2}-1)\]You need to login to perform this action.
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