Solve a Trig Equation Fast

Solve a Trig Equation Fast

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains how to isolate and solve a trigonometric equation involving sine squared of Theta. It demonstrates using inverse operations, dividing both sides, and rationalizing the denominator to find the solution. The final equation is graphed, and solutions are identified on the unit circle at specific angles.

Read more

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in isolating the trigonometric function in the given equation?

Use inverse operations

Subtract a constant from both sides

Multiply both sides by a constant

Add a constant to both sides

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After dividing both sides by two, what does the equation become?

sine of Theta equals 1

sine squared of Theta equals 1

sine of Theta squared equals 1/2

sine squared of Theta equals 2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the square root be rationalized in the equation?

By dividing by sqrt 2

By adding sqrt 2 to both sides

By multiplying by sqrt 2 / 2

By subtracting sqrt 2 from both sides

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final equation for sine of Theta after simplification?

sine of Theta equals ± sqrt 2

sine of Theta equals ± 1/2

sine of Theta equals ± sqrt 2 / 2

sine of Theta equals ± 1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which angles on the unit circle correspond to the solutions of the equation?

π / 2, π, 3π / 2, 2π

π / 4, 3π / 4, 5π / 4, 7π / 4

π / 6, π / 3, 2π / 3, 5π / 6

π / 8, 3π / 8, 5π / 8, 7π / 8