Athemat surface area of the sphere given by 11. x = a sin 6 cos p, y = a sin sin o, z = a cos 0 where 00t, 0 o < 21. (a) 4a2 (b) 4a t (c) 4t (d) none

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Mahima, here x^2+y^2+z^2=a^2 which represents a sphere of radius 'a' and centre at origin. and using formula surface area of a sphere. S= 4. pi. a^2 option (b)

Mahima, here x^2+y^2+z^2=a^2 which represents a sphere of radius 'a' and centre at origin. and using formula surface area of a sphere. S= 4. pi. a^2 option (b)