Math Problem Statement

GRAPH RESULT OF ADDING FUNCTION SIN WITH COSIN

Solution

To graph the result of adding the sine and cosine functions, we are looking at the function:

f(x)=sin(x)+cos(x)f(x) = \sin(x) + \cos(x)

This function combines the oscillations of sine and cosine. The graph will show periodic behavior, with the amplitude of the combined wave being 2\sqrt{2} (due to the trigonometric identity for the sum of sine and cosine).

Let's plot this function.The graph above shows the function f(x)=sin(x)+cos(x)f(x) = \sin(x) + \cos(x). The combined wave oscillates between approximately 2-\sqrt{2} and 2\sqrt{2}, reflecting the result of adding the two periodic functions. The amplitude is enhanced compared to the individual sine or cosine waves.

Would you like more details on this graph or have any questions?

Here are 5 related questions to explore further:

  1. What is the maximum and minimum value of sin(x)+cos(x)\sin(x) + \cos(x)?
  2. How can we express sin(x)+cos(x)\sin(x) + \cos(x) using a single trigonometric function?
  3. What is the period of the function sin(x)+cos(x)\sin(x) + \cos(x)?
  4. How does phase shift affect the graph of sin(x)+cos(x)\sin(x) + \cos(x)?
  5. How does the amplitude of the function sin(x)+cos(x)\sin(x) + \cos(x) compare to the individual amplitudes of sin(x)\sin(x) and cos(x)\cos(x)?

Tip: You can rewrite sin(x)+cos(x)\sin(x) + \cos(x) as 2sin(x+π/4)\sqrt{2} \sin(x + \pi/4), which makes it easier to understand its amplitude and phase shift!

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Sine and Cosine Functions
Periodic Functions
Amplitude
Phase Shift

Formulas

f(x) = sin(x) + cos(x)
f(x) = √2 sin(x + π/4)

Theorems

Trigonometric identity for the sum of sine and cosine

Suitable Grade Level

Grades 9-12