Question

give all formula math formula used in class 8 th

Answer 1

Squarea2RectangleabCircleπr2Ellipseπr1r2Triangle12bh

Algebraic Identities For Class 8

(a+b)2=a2+2ab+b2(a−b)2=a2−2ab+b2(a+b)(a–b)=a2–b2(x+a)(x+b)=x2+(a+b)x+ab(x+a)(x–b)=x2+(a–b)x–ab(x–a)(x+b)=x2+(b–a)x–ab(x–a)(x–b)=x2–(a+b)x+ab(a+b)3=a3+b3+3ab(a+b)(a–b)3=a3–b3–3ab(a–b)