please help me to solve these questions
Attachments:
harshitatyagi:
which class it is
and which board
Answers
Answered by
1
(a+b)³=a³+b³+3ab(a+b)
(a+b)³-3ab(a+b)= a³+b³
(a+b)[(a+b)²-3ab]=a³+b³
(a+b)[a²+b²+2ab-3ab]=a³+b³
(a+b)[a²-ab+b²]=a³+b³
derived
(a+b)³-3ab(a+b)= a³+b³
(a+b)[(a+b)²-3ab]=a³+b³
(a+b)[a²+b²+2ab-3ab]=a³+b³
(a+b)[a²-ab+b²]=a³+b³
derived
Similar questions