Q. Select the expression that is equivalent to (3x2−5)−521(3x2−5)55(3x2−5)2(3x2−5)515(3x2−5)21
Simplify Negative Exponent: To find an equivalent expression, we need to simplify the given expression. The negative exponent indicates that the expression is the reciprocal of the base raised to the positive exponent.(1)/((3x2−5)−(2)/(5))=(3x2−5)2/5
Identify Simplified Expression: Now we need to identify which of the provided options matches the simplified expression. The expression (3x2−5)52 can be written as the 5th root of (3x2−5) squared, which is the same as 5(3x2−5)2.
Eliminate Incorrect Options: The correct equivalent expression is therefore 5(3x2−5)2. We can eliminate the other options as they do not match the simplified expression:- (3x2−5)5 is not equivalent because it represents the square root, not the 5th root.- (3x2−5)51 is not equivalent because it represents the reciprocal of the square root, not the 5th root.- 5(3x2−5)21 is not equivalent because it represents the reciprocal of the 5th root squared, which is not the same as the 5th root of the square.
More problems from Find derivatives of using multiple formulae