Một tam giác có 3 cạnh là a, b,c thỏa (a+b-c)^3+(b+c-a)^3+(c+a-b)^3=a^3+b ^3+c^3 chứng minh tam giác đó là tam giác đều

i got 142 as my answer

step-by-step explanation:

the answer is d

the answer is in the first quadrant, which make the y-int positive.

since the dots are going down, therefore the correlation is negative

i hope it is right.

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

the first option is the answer.