SOLUTION: refer to the function f(x)=3x^3-11x^2+5x+3
Use DesCartes' rule of signs to determine the possible number of positive real zeros
a. 4 or 2 or 0
b. 2 or 0
c. 3 or 1
d. 3 o
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Question 36971: refer to the function f(x)=3x^3-11x^2+5x+3
Use DesCartes' rule of signs to determine the possible number of positive real zeros
a. 4 or 2 or 0
b. 2 or 0
c. 3 or 1
d. 3 or 1 or 0
e. none of these
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
refer to the function f(x)=3x^3-11x^2+5x+3
HERE THERE ARE 2 SIGN CHANGES IN F(X)...
1..FROM 3 TO -11
2.FROM -11 TO +5
SO THERE COULD BE 2 OR 0 POSITIVE ROOTS AS PER THE RULE OF SIGNS
Use DesCartes' rule of signs to determine the possible number of positive real zeros
a. 4 or 2 or 0
b. 2 or 0.....................OK
c. 3 or 1
d. 3 or 1 or 0
e. none of these
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