Find all the solutions of a trig equation by looking at the graph and unit circle

Find all the solutions of a trig equation by looking at the graph and unit circle

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial covers solving equations with infinite solutions, focusing on the unit circle and sine function. It addresses common student challenges with the unit circle and emphasizes the importance of understanding it. The tutorial explains how to find angles when sine of X is positive or negative and discusses graph periodicity and X intercepts. It concludes with exploring solution sets using integer N, highlighting the concept of infinite solutions.

Read more

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving for sine of X using the unit circle?

Graphing the function

Isolating the sine of X

Memorizing the unit circle

Using a calculator

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common mistake students make when learning about the unit circle?

They use incorrect formulas

They memorize instead of understanding

They focus too much on graphing

They skip practice problems

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the unit circle important for upcoming lessons?

It is used in every math problem

It simplifies algebraic equations

It helps in memorizing formulas

It is crucial for understanding trigonometric functions

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the angle in radians where sine equals positive 1/2?

π/6

π/4

π/2

π/3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can additional solutions be found once an angle is identified?

By subtracting 2π

By adding π

By adding 2π

By subtracting π

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the variable N represent in the context of infinite solutions?

Any integer

A fraction

A constant value

A specific angle

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the solution for θ when N is equal to -1?

π/6

-π/6

5π/6

-5π/6