A rectangle ABCD of dimensions r and 2r is folded along the giagnal BD such that the plane BCD stands upright on the diagnal BD. Let the position of the vertex A remains unchanged and E be the new position of C
Answer the next two SIMPLE questions(Q1 and Q2) on the basis of above statement
if angle(ABE) = x then cosx.cos(60-x)cos(60+x) is
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UP 0 DOWN 0 0 0
