Question

help me out q.no.3 ,...,.....................................

Answer 1

Answer:

Step-by-step explanation:

(a+b+c)² = a²+b²+c²+2ab+2bc+2ca

(1/2a-1/4b+2)² = 1/4a²+1/16b²+4+2(1/2a)(-1/4)+2(-1/4)(2)+2(2)(1/2a)

                      = 1/4a²+1/16b²+4-ab/4-b+2a