Mathematics 1 Deneme Sınavı Sorusu #1223196

Which of the following is a polynomial function?


f (x)= x1/3 + 1

f(x) = 21/2 x +1 

f (x)= x+ 2x1/2 +1

f (x)= 2x1/3 +1

f(x) = 2x-1 - 1


Yanıt Açıklaması:

Since 1/2, 1/3 and -1 are not natural numbers, A, C, D and E are not polynomial functions. All powers of the variable x must be natural numbers. The only available function that satisfies this condition here is f(x) = 21/2 x +1, where the power of x is 1.      

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