5. If tan o, tan B, tan y are the roots of the equation x- px-r= 0 then the value of (1+ tan )(1+tan B(1+ tan y)= a) 1+(p-r) 6. If (tanx-tan y),(tan y-tanz) and (tanz-tan.c) are in A.P then tanx-tany, tany-tanz, tans-tanx are in b) 2+(p-r) c) 3+(p+r) d) 1-(p-r) a) A.P b) G.P c) . Given that the side length of a rhombus is the geometric mean of the lengths of its diagonals. The d) A.G.P 7. degree measure of the acute angle of the rhombus is a) 150 b) 30 c) 450 d) 60 8. Let AgAAzAzA As be a regular hexagon inscribed in acirele of unit radius. Then the product of the length of the line segments AgA1,AgAz, and A A is a) 3/4 b) 3/3 c) 3 d) 33/2