Given the function y=55x34, find dxdy. Express your answer in radical form without using negative exponents, simplifying all fractions.Answer: dxdy=
Q. Given the function y=55x34, find dxdy. Express your answer in radical form without using negative exponents, simplifying all fractions.Answer: dxdy=
Rewrite function with fractional exponent: We are given the function y=55(x3)4. To find the derivative dxdy, we will use the power rule for differentiation, which states that if y=xn, then dxdy=n⋅xn−1. In this case, we need to rewrite the function in a form that allows us to apply the power rule.
Combine constants and powers: First, we rewrite the square root in the denominator as a fractional exponent: 5=51/2. Then, we rewrite the function y as y=5⋅51/2⋅x34. This can be further simplified by combining the constants and the powers of 5.
Apply power rule for differentiation: The function becomes y=(5234)⋅x−3. Now we can apply the power rule to find the derivative with respect to x.
Simplify the derivative expression: Differentiating y with respect to x, we get dxdy=5234⋅(−3)⋅x(−3−1). This simplifies to dxdy=−52312⋅x−4.
Rewrite in radical form: We want to express the answer in radical form without using negative exponents. To do this, we rewrite x−4 as 1/x4 and 53/2 as 53 or 125.
Finalize the derivative expression: The derivative dxdy in radical form without negative exponents is dxdy=−125∗x412. We can simplify 125 to 55.
Finalize the derivative expression: The derivative (dy)/(dx) in radical form without negative exponents is (dy)/(dx)=−12/(125∗x4). We can simplify 125 to 55.Finally, we simplify the fraction by dividing −12 by 55. The derivative (dy)/(dx) is (dy)/(dx)=−12/(55∗x4).
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