In Triangle ABC ,Angle B=90 and BD perpendicular AC, if AC=9 cm and AD=3 cm then BD is equal to
1. 2√2 cm
3. 2√3 cm
Find a quadratic polynomial whose
If the LCM of 12 and 42 is 10m +4, then the value of m is
what is the theme and moral lesson of the story "The portrait of a lady"?
The type of salt formed by partial replacement of replaceable hydrogen ion of an acid by a basic radical is ____.
two charged metal spheres of radii R and 2R temporarily placed in contact and then separated. At the surface of each, which sphere has the greater value of the following: (a) charge, (b) charge density, (c) potential, (d) electric field.
phosphorus pentoxide , P4O10 has each phosphorus linked to
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