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If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?

What are the domain and range of the function below? a) domain: (-4,0) range: [-2,infinity) b) domain: (-3,0) range: [-2,infinity) c) domain: (-infinity,infinity) range: [-2, infinity) d) domain: [-2,infinity) range: (-infinity,infinity)