Prove that the semi-vertical angle of the right circular cone of given volume and least curved surface is `cot^(-1)(sqrt(2))dot`

Prove that the semi-vertical angle of the right circular cone of given volume and least curved surface area is cot^-1sqrt2

Prove the semi-vertical angle of the right circular cone of given volume and least curved surface area is cot^(-1) sqrt(2) .

Show that the semi-vertical angle of right circular cone of the maximum volume and of given slant height is tan^(-1) sqrt(2)

Show that the semi-vertical angle of the right-circular cone of maximum volume and of given slant height is cos^-1(1/sqrt3)

Show that the semi-vertical angle of right circular cone of given surface area and maximum volume is "cosec"^(-1) (3) .

Show that the semi vertical angle of a right circular cone of given total surface area and max volume is sin^-1 (1/3)

Show that the semi - vertical angle of the right - circular cone of maximum volume and of given slant height is : (i) tan^(-1)sqrt2 (ii) cos^(-1)""(1)/(sqrt3).

show that the semi vertical angle of a right circular cone of given total surface area and max volume is sin ^(-1)((1)/(3))