Yep he or she is right have a nice day
Im not for sure on this but i would say DF is 13
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 :
Answer:
i need points so i am answering
Step-by-step explanation: