Question

basic math formulas for class 8th?

Answer 1

a-m = 1/am

am / an = am-n

(am )n     = amn

am x bm  = (ab)m

am / bm   = (a/b)m

a0 =1

(a/b)-m =(b/a)m

(1)n = 1 for infinitely many n.


(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


These are all basic and important formulae for class 8th mathematical.

Hope this will help u... :-)