3 years ago

If f(x)=2x^4-3x^3+2x^2+x-3, explain how you know that the equation f(x)=0 has at least one real root between x=1 and x=2

Mathematics

1 answer:

hodyreva [135]3 years ago

7 0

Answer:

Step-by-step explanation:

by theorem :

f continu in [1 , 2]

f(1)×f(2) < 0 because : f(1) = -1 and f(2) = 15

so the equation f(x)=0 has at least one real root between x=1 and x=2

so :

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Kruka [31]

R = 25 cm = 0.25 m
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3 years ago

Please help due soon I don’t get it

natka813 [3]

Answer:

x>0 and y>0

Step-by-step explanation:

1= ++ 2= -+ 3= -- 4= +-

6 0

3 years ago

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