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AB = 9 m DC = h, BC = x In ∆BCD tan 45 ° = DC/BC = h/x 1 = h/x x = h In ∆ACD tan 30° = DC/AC = DC/(AB + BC) 1/ √3 = h/(9 + x) 1/ √3 = h/(9 + h) 9 + h = √3 h √3 h - h = 9 h ( √3 - 1 ) = 9 h = 9/( √3 - 1)x ( √3 + 1)/ ( √3 + 1) = 9( √3 + 1)/2
How is O related to A?
How is S related to O?
How is R related to V?
Which, among the following option(s) , is/are definitely true?
How is Umang related to Nisha?
How many male members are there in the family?
Which of the following can be the correct conclusion drawn from the expression
‘P % Q + R @ S % T’
_____ is the father of _____.
I. V, U
II. P, Q
III. U, T
D is the brother of C. E is the sister of F, who is the son of B. G is the daughter-in-law of C. F is married to G. C is not a male. How is D related to B?
Who is the grandfather of Y?