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CHUMKY JANA

· started a discussion

· 1 Months ago

detail solusion (Question: 246545.0 )

(a^2+a+1)=0
=>(a-1)(a^2+a+1)=(a-1)*0[multiplying both sides by (a-1)]
=>(a^3-1)=0
=>a^3=1

now we have to find,
a^5+a^4+1
=a^3*a^2+a^3*a+1
=a^2+a+1[putting a^3=1]
=0[which was given]answer...

Question:
If a2 + a + 1 = 0 then, find the value of a5 + a4 + 1.
Options:
A) 3
B) 5
C) 0
D) 2
Solution:

Ans: (c)


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