please help me this questions...21....points..
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k=6 as they r coincident a1/a2=b1=b2=c1=c2
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remaining solution is here.
surface area of 2 sphere=4 pie r2 square
S.A of 1st/S.A. of 2nd= 16/9
surface area of 2 sphere=4 pie r2 square
S.A of 1st/S.A. of 2nd= 16/9
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