1) l = m = n = 1 / √3 2) l = m = n = ± 1 / √3 3) l = m = n = - 1 / √3 4) l = m = n = ± 1 / √2 Solution: (1) l = m = n = 1 / √3 It is given... View Article
1) 3√6 2) 2√6 3) √6 4) 2 Solution: (2) 2√6 The equation of sphere is x2 + y2 + z2 = 54. The centre and radius of this sphere are... View Article