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Consider the quadratic function f(x)=|m+...

Consider the quadratic function `f(x)=|m+1|x^2+(m+3)x+1`,`(m!=-1)` then which of the following is/are true? a. f(x)=0 has no real roots for `m in (-5-2sqrt3,-5+2sqrt3)` b. f(x)=0 has no real roots for `m in (-oo,-5-2sqrt3)(-5+2sqrt3,oo)` c. Range of minimum value of f(x) is `(-oo,-1]` d. Range of minimum value of f(x) is `(-oo,-3/4]`

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