• Jagat Chaudhary
    Hope this helped
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  • Jagat Chaudhary thankyou
    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)
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  • Jagat Chaudhary
    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)
    Likes(0) Reply(0)
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