Question

Find the interval containing a solution of the
function f(x)=x²+x+1​

Answer 1

Answer:

for x∈R,y≥34x∈R,y≥34 

or range of given function is (34,∞)(34,∞)

f−1(x)=−1±4x−3−−−−−√2f−1(x)=−1±4x−32