Understand the expression: Understand the expression.We need to evaluate the expression (3−5)/(40(1)/(3)).This means we need to find the cube root of −5 and divide it by the cube root of 40.
Evaluate the cube root of −5: Evaluate the cube root of −5.The cube root of −5 is the number that, when multiplied by itself three times, gives −5.The cube root of −5 is −35 (since −35×−35×−35=−5).
Evaluate the cube root of 40: Evaluate the cube root of 40.The cube root of 40 is the number that, when multiplied by itself three times, gives 40.The cube root of 40 is 340.
Divide the cube root of −5 by the cube root of 40: Divide the cube root of −5 by the cube root of 40. Now we divide −35 by 340. The expression becomes (−35)/(340).
Simplify the expression: Simplify the expression.Since both the numerator and the denominator are under a cube root, we can combine them under a single cube root.The expression becomes 340−5.
Simplify the fraction inside the cube root: Simplify the fraction inside the cube root.The fraction (−5)/40 can be simplified to −1/8.So the expression now is 3−1/8.
Evaluate the cube root of −81: Evaluate the cube root of −81. The cube root of −81 is the number that, when multiplied by itself three times, gives −81. The cube root of −81 is −21 (since (−21)×(−21)×(−21)=−81).