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  1. D

    In the solid angle, conic section's radius is equal to the sphere radius?

    In a conic section's formula is 2/3( pi r)* h, but why a solid angle formula is ds/r^2 (where ds is the conic section's surface area).
  2. D

    where can I find wifi password recovery software for nokia e63?

    If y know then plz tell me the answer or not.
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