Question

simplify using suitable identity

1/2 a + b - c ​

Answer 1

• associative property is suitable for this question
• a=1/2a
• b=b
• c=-c
• a×(b×c)=(a×b)×c
• 1/2a×(b×-c)=(1/2a×b)×(-c)
• -1/2abc=-1/2abc
• this question satisfies associative property