prove that (1+w)²-(1+w²)³=0
class 11
Answers
Answered by
2
Answer:
Step-by-step explanation:
Answer
Correct option is
A
0
(1+ω) 3 −(1+ω 2 ) 3
=(1+ω−1−ω 2 )[(1+ω) 2 +(1+ω)(1+ω 2 )+(1+ω 2 ) 2 ]
=(ω−ω 2 )[1+ω 2 +2ω+1+ω 2 +ω+ω 3 +1+ω 4 +2ω 2 ]
=(ω−ω 2 )[4+4ω+4ω 2 ]
=(ω−ω 2 )×0 =0
Similar questions