• Study Resource
• Explore

# Download Factor a trinomial: 2 cos 2x + cos x 1 = 0 when 0 ≤ x < 2π

Survey

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Debye–Hückel equation wikipedia, lookup

Maxwell's equations wikipedia, lookup

Equations of motion wikipedia, lookup

Partial differential equation wikipedia, lookup

Schrödinger equation wikipedia, lookup

Exact solutions in general relativity wikipedia, lookup

Differential equation wikipedia, lookup

Schwarzschild geodesics wikipedia, lookup

Two-body Dirac equations wikipedia, lookup

Itô diffusion wikipedia, lookup

Derivation of the Navier–Stokes equations wikipedia, lookup

Euler equations (fluid dynamics) wikipedia, lookup

Navier–Stokes equations wikipedia, lookup

Transcript
```PreCalc: Monday, 5‐1
5.5 day 3 Solving Trig Equations
Factor a trinomial: 2 cos 2x + cos x ­ 1 = 0 when 0 ≤ x < 2 π
Think of this equation as _______________ and use "X­box" method.
Solve using square roots:
4 sin 2x ­ 1 = 0 when 0 ≤ x < 2 π
Move all terms to one side of the equation and solve:
tan x sin 2x = 3 tan x when 0 ≤ x < 2 π
```
Related documents