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a^(2)+b^(2)-2(ab-ac+bc)

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11.Factorise :a^(2)+b^(2)+2ab+2ac+2bc) Factorise: a^(3)-b^(3)1+3ab

(a+b+c)(a^(2)+b^(2)+c^(2)-ab-bc-ac)

Important Identity -(a^(3)+b^(3)+c^(3)-3abc)=(a+b+c)(a^(2)+b^(2)+c^(2)-ab-bc-ac)

Factorize the following expressions a^2+b^2-2(ab+bc-ac)

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Using properties of determinants, prove the following abs{:(a^2, bc, ac +c^2 ),(a^(2) + ab, b^(2),ac ),(ab, b^(2) + bc,c^(2) ):}=4a^(2) b^(2) c^(2) .

If (a^(2)-bc)/(a^(2) +bc) + (b^(2)-ac)/(b^(2) + ac) + (c^(2)-ab)/(c^(2)+ab)= 1 then find (a^(2))/(a^(2) + bc) + (b^(2))/(b^(2) + ac) + (c^(2))/(c^(2) +ab)= ?

The determinant Delta = |(a^(2) + x^(2),ab,ac),(ab,b^(2) + x^(2),bc),(ac,bc,c^(2) + x^(2))| is divisible

If |{:(bc-a^(2),ac-b^(2),ab-c^(2)),(ac-b^(2),ab-c^(2),bc-a^(2)),(ab-c^(2),bc-a^(2),ac-b^(2)):}|=k(a^(3)+b^(3)+c^(3)-3abc)^(l) then the value of (k, l) is