Math Problem Statement

sin x = cos pigreco sesti

Solution

The equation you provided is:

sin(x)=cos(π6)\sin(x) = \cos\left(\frac{\pi}{6}\right)

First, we know that:

cos(π6)=32\cos\left(\frac{\pi}{6}\right) = \frac{\sqrt{3}}{2}

So the equation becomes:

sin(x)=32\sin(x) = \frac{\sqrt{3}}{2}

Now, we need to solve for xx. The general solution for sin(x)=32\sin(x) = \frac{\sqrt{3}}{2} occurs when:

x=π3+2kπorx=ππ3+2kπx = \frac{\pi}{3} + 2k\pi \quad \text{or} \quad x = \pi - \frac{\pi}{3} + 2k\pi

Simplifying the second solution:

x=2π3+2kπx = \frac{2\pi}{3} + 2k\pi

where kZk \in \mathbb{Z} (an integer).

Thus, the general solutions for xx are:

x=π3+2kπorx=2π3+2kπx = \frac{\pi}{3} + 2k\pi \quad \text{or} \quad x = \frac{2\pi}{3} + 2k\pi

Would you like further details or clarification on any part of this? Here are some related questions you might consider:

  1. How do you derive the general solution for trigonometric equations?
  2. Can we use inverse trigonometric functions to solve this equation?
  3. How do you solve sin(x)=32\sin(x) = -\frac{\sqrt{3}}{2}?
  4. What is the difference between the sine and cosine functions graphically?
  5. How do you solve trigonometric equations in degrees?

Tip: When solving trigonometric equations, always remember to account for all possible solutions in the given domain.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Sine and Cosine Functions
General Solutions for Trigonometric Equations

Formulas

cos(π/6) = √3/2
General solution for sin(x) = √3/2: x = π/3 + 2kπ or x = 2π/3 + 2kπ, where k ∈ ℤ

Theorems

Trigonometric Identities
Sine and Cosine General Solutions

Suitable Grade Level

Grades 10-12