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[" 15.If "a,b,c" are in Gre that "(a+b^(...

[" 15.If "a,b,c" are in Gre that "(a+b^(2)),(ab+bc),(b^(2)+c^(2))" are in GP."],[[" (b.If "a,b,c,d" are in GP,prove that "(a^(2)-b^(2)),(b^(2)-c^(2)),(c^(2)-c^(2)),(c^(2)-d^(2))" are in G.P."],[" 1) If "a,b,c,d" are in GP then prove that "]]

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If a, b, c, d are in GP, prove that (a^(2)-b^(2)), (b^(2)-c^(2)), (c^(2)-d^(2)) are in GP.

If a, b, c are in GP, prove that (a^(2)+b^(2)), (ab+bc), (b^(2)+c^(2)) are in GP.

If a, b, c, d are in GP, then prove that 1/((a^(2)+b^(2))), 1/((b^(2)+c^(2))), 1/((c^(2)+d^(2))) are in GP.

If a,b,c,d are in GP then prove that, (a^2-b^2), (b^2-c^2), (c^2-d^2) are in GP.

a,b,c,d are in G.P. Prove that a^(2)-b^(2),b^(2)-c^(2), c^(2)-d^(2) are also in G.P.

If a, b, c, d are in G.P., prove that a^(2) - b^(2), b^(2)-c^(2), c^(2)-d^(2) are also in G.P.

If a,b,c are in G.P., prove that a^(2)+b^(2),ab+bc,b^(2)+c^(2) are also in G.P

If a, b, c are in GP, prove that a^(2), b^(2), c^(2) are in GP.

If a ,b ,c are in G.P., prove that: a(b^2+c^2)=c(a^2+b^2)

If a, b, c, d are in GP, prove that (b-c)^(2)+(c-a)^(2)+(d-b)^(2)=(a-d)^(2) .