Question

solve with identity : (1) 59^2​

Answer 1

Answer:

(59)2= (50+9)2

(50)2+(9)2+2(50)(9)

2500+81+900

3481

Answer 2

Answer:

=> (60+1)^2-(60-1)^2

=> Identitiy:- a^2-b^2=(a-b)(a+b)

=> [(60+1)-(60-1)] [(60+1)+(60-1)

=> [60+1-60+1][60+1+60-1]

=> [2] [120]

=> 240