Math Problem Statement

Find the gradient of the following sums

Solution

The image contains three mathematical expressions for which we need to find the gradient (or derivative). Let's analyze and solve each one.

  1. y=sin(x)+cos(x)y = \sin(x) + \cos(x)
  2. y=e2x+xy = e^{2x} + x
  3. y=2ln(x)+x2y = 2 \ln(x) + x^2

Let's find the gradient for each function.

1. y=sin(x)+cos(x)y = \sin(x) + \cos(x)

The gradient (or derivative) of yy with respect to xx is: dydx=ddx(sin(x)+cos(x))\frac{dy}{dx} = \frac{d}{dx} (\sin(x) + \cos(x))

Using the derivatives of sine and cosine: dydx=cos(x)sin(x)\frac{dy}{dx} = \cos(x) - \sin(x)

2. y=e2x+xy = e^{2x} + x

The gradient (or derivative) of yy with respect to xx is: dydx=ddx(e2x+x)\frac{dy}{dx} = \frac{d}{dx} (e^{2x} + x)

Using the chain rule for the derivative of e2xe^{2x}: dydx=2e2x+1\frac{dy}{dx} = 2e^{2x} + 1

3. y=2ln(x)+x2y = 2 \ln(x) + x^2

The gradient (or derivative) of yy with respect to xx is: dydx=ddx(2ln(x)+x2)\frac{dy}{dx} = \frac{d}{dx} (2 \ln(x) + x^2)

Using the derivatives of natural logarithm and power functions: dydx=2x+2x\frac{dy}{dx} = \frac{2}{x} + 2x

Summary

  1. For y=sin(x)+cos(x)y = \sin(x) + \cos(x): dydx=cos(x)sin(x)\frac{dy}{dx} = \cos(x) - \sin(x)

  2. For y=e2x+xy = e^{2x} + x: dydx=2e2x+1\frac{dy}{dx} = 2e^{2x} + 1

  3. For y=2ln(x)+x2y = 2 \ln(x) + x^2: dydx=2x+2x\frac{dy}{dx} = \frac{2}{x} + 2x

Would you like further details or have any questions?

Related Questions

  1. How do you find the second derivative of y=sin(x)+cos(x)y = \sin(x) + \cos(x)?
  2. What is the gradient of y=tan(x)y = \tan(x)?
  3. How do you find the gradient of y=ln(x)+exy = \ln(x) + e^x?
  4. What is the gradient of y=x3+3x2+5y = x^3 + 3x^2 + 5?
  5. How do you determine the gradient of y=e3x+ln(x)y = e^{3x} + \ln(x)?
  6. What is the derivative of y=arcsin(x)+arccos(x)y = \arcsin(x) + \arccos(x)?
  7. How do you compute the gradient of y=x+1xy = \sqrt{x} + \frac{1}{x}?
  8. What is the gradient of y=xln(x)y = x \ln(x)?

Tip

When differentiating composite functions, remember to use the chain rule, which states that ddxf(g(x))=f(g(x))g(x)\frac{d}{dx} f(g(x)) = f'(g(x)) \cdot g'(x).

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Math Problem Analysis

Mathematical Concepts

Differentiation
Trigonometric functions
Exponential functions
Logarithmic functions

Formulas

Derivative rules for sine, cosine, exponential, logarithmic functions
Chain rule

Theorems

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Suitable Grade Level

College level