Solving an equation with tangent with no restrictions

Solving an equation with tangent with no restrictions

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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Quizizz Content

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The video tutorial explains how to solve a tangent equation, initially within the interval of 0 to 2π, and then extends the solution to include all possible angles by removing the interval restriction. It covers the concept of tangent on the unit circle, the periodic nature of the tangent function, and how to express solutions in a general form using π. The tutorial emphasizes understanding the infinite nature of solutions when constraints are removed.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the equation 3 * tan(x) + 3 = 0?

Subtract 3 from both sides

Multiply both sides by 3

Divide both sides by 3

Add 3 to both sides

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which angles within the interval [0, 2π] make tan(x) equal to -1?

π/2 and 3π/2

π/4 and 5π/4

0 and π

3π/4 and 7π/4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the unit circle in this context?

It is used to solve linear equations

It provides only one solution

It restricts solutions to positive angles

It helps find angles where tan(x) = -1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the periodicity of the tangent function?

π

π/2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does removing the interval restriction allow us to do?

Find only one solution

Consider solutions beyond 2π

Ignore the unit circle

Use only positive angles

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the general solution for tan(x) = -1 be expressed?

3π/4 + 2πn

π/4 + πn

7π/4 + πn

3π/4 + πn

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it unnecessary to write both 3π/4 + πn and 7π/4 + πn?

They are the same angle

They are not solutions

One is a multiple of the other

Adding π covers both solutions