1.

Ify= (sinx+cosx)+(sin4x+cos4x)^(2), then :

Answer»

`y gt 0 AA X in R`
`y GE 0 AA x in R`
`y lt 2+sqrt(2)AA x in R`
`y=2+sqrt(2) " for some "x in R`

Answer :C


Discussion

No Comment Found

Related InterviewSolutions