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(a-b)^(2)

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1+a^(2)-b^(2),2ab,-2b2ab,1-a^(2)+b^(2),2a2b,-2a,1-a^(2)-b^(2)]|=(1+a^(2)+b^(2))^(3)

find the sum of 2a(a^(2)+b^(2)),2b^(2)(b-a) and 12b(a^(2)-b^(2))

If x = (sqrt(a^2+b^2)+sqrt(a^2-b^2))/(sqrt(a^2+b^2)-sqrt(a^2-b^2)) show that b^2x^2-2a^2x+b^2 =0 .

If cos theta+sin theta=a,cos2 theta=b, then (a)a^(2)=b^(2)(2-a^(2))(b)b^(2)=a^(2)(2-b^(2))(c)b^(2)=a^(2)(2-a^(2))(d)a^(2)=b^(2)(2-b^(2))

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

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

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

Simplify ((a^(2)+b^(2))/(a^(2)-b^(2))-(a^(2)-b^(2))/(a^(2)+b^(2)))/((a+b)/(a-b)-(a-b)/(a+b))

Prove that matrix [((b^(2)-a^(2))/(a^(2)+b^(2)),(-2ab)/(a^(2)+b^(2))),((-2ab)/(a^(2)+b^(2)),(a^(2)-b^(2))/(a^(2)+b^(2)))] is orthogonal.

Prove that matrix [((b^(2)-a^(2))/(a^(2)+b^(2)),(-2ab)/(a^(2)+b^(2))),((-2ab)/(a^(2)+b^(2)),(a^(2)-b^(2))/(a^(2)+b^(2)))] is orthogonal.