Question

(0.2)^3-(0.3)^3+(0.1)^3​

Answer 1

Answer:

(0.2)³+(-0.3)³+(0.1)³ = -0.018

Step-by-step explanation:

/* We know that,

If x+y+z=0 then x³+y³+z³ = 3xyz */

Here ,

x = 0.2, y = -0.3 , z = 0.1

Now,

x+y+z = 0.2-0.3+01 = 0,

x³+y³+z³

= (0.2)³+(-0.3)³+(0.1)³

= 3xyz

= 3(0.2)(-0.3)(0.1)

= -0.018

Therefore,

(0.2)³+(-0.3)³+(0.1)³ = -0.018

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