1 m2 = _____ cm2
100
1000
10000
100000
1 m = 100 cm
1 m2 = 1 m × 1 m
1 m2 = 100 cm × 100 cm = 10000 cm2
Factorise :
(l+m)2−(l−m)2
If m−1m=5, find :
(i) m2+1m2
(ii) m4+1m4
(iii) m2−1m2
,m2+1, m2−1 form a Pythagorean triplet