Connect - Learn - Fundraise
First time here? Checkout the FAQs!
x

*Math Image Search only works best with zoomed in and well cropped math screenshots. Check DEMO

How do you determine which reduction to use when solving trigonometric expressions?

Our AI technology rapidly solves problems, while our available tutors provide personalized support and clarification to ensure efficient and effective solutions.


0 like 0 dislike
254 views
How do you determine which reduction to use when solving trigonometric expressions?
in Mathematics by ♦ Diamond (88,926 points) | 254 views

1 Answer

0 like 0 dislike
You must know what reduction x angle is in each quadrant. x<90 degrees

1st quadrant ,x is less or equal to 90 degrees and all the trig functions are positive (sin, cos and tan)

2nd quad, x = 180-x , sine is positive and the other trig functions are negative

3rd quad, x = 180 + x , tan is positive and the other trig functions negative

4th quad, x = 360 - x, cos is positive and the other trig functions negative.

For example simplify tan 120 :

x angle will be 180 - 60 to give 120, so we have tan 120 = tan 60

but operation 180 - 60 (180-x) is in quadrant 2 where tan is negative, hence is correctly -tan 60
by Gold Status (26,655 points)

Related questions

0 like 0 dislike
1 answer
Who can tell me the trigonometric identities?
asked Apr 30, 2020 in Mathematics by ♦MathsGee Diamond (88,926 points) | 226 views
0 like 0 dislike
1 answer
How do you simplify the power of a product of two exponential expressions?
asked Jul 29, 2021 in Mathematics by ♦MathsGee Diamond (88,926 points) | 302 views
0 like 0 dislike
1 answer
What are the barriers to finding the best solution when solving problems?
asked Sep 24, 2020 in General Knowledge by ♦MathsGee Diamond (88,926 points) | 697 views
1 like 0 dislike
1 answer
In starting a startup, how do I find a problem worth solving?
asked Jan 20, 2022 in General Knowledge by ♦MathsGee Diamond (88,926 points) | 202 views
1 like 0 dislike
0 answers
How do I apply the laws of exponents to expressions involving rational exponents?
asked Sep 7, 2022 in Mathematics by ♦MathsGee Diamond (88,926 points) | 89 views
0 like 0 dislike
1 answer
How much is the reduction in the childhood pneumonia deaths?
asked Feb 8, 2019 in General Knowledge by anonymous | 214 views
0 like 0 dislike
1 answer
How does dimension reduction help reduce overfitting?
asked Jul 24, 2020 in Data Science & Statistics by ♦MathsGee Diamond (88,926 points) | 298 views
0 like 0 dislike
0 answers
Use the sketch of the unit circle to check the following trigonometric properties:
asked Jan 13, 2022 in Mathematics by ♦MathsGee Diamond (88,926 points) | 133 views
1 like 0 dislike
1 answer
When are two or more algebraic expressions equivalent?
asked Jan 3, 2021 in Mathematics by ♦MathsGee Diamond (88,926 points) | 306 views
1 like 0 dislike
1 answer
How do I simplify mathematical expressions with algebraic fractions?
asked Oct 20, 2021 in Mathematics by ♦MathsGee Diamond (88,926 points) | 333 views
0 like 0 dislike
1 answer
How do I simplify the power of a quotient of two expressions?
asked Jul 29, 2021 in Mathematics by Edzai Zvobwo Bronze Status (5,558 points) | 224 views
1 like 0 dislike
1 answer
How do I simplify algebraic expressions?
asked Jan 3, 2021 in Mathematics by ♦MathsGee Diamond (88,926 points) | 374 views
0 like 0 dislike
1 answer
How do I simplify these expressions?
asked Aug 20, 2020 in Mathematics by Joshua Mwanza Gold Status (26,655 points) | 306 views

Join MathsGee Student Support, where you get instant support from our AI, GaussTheBot and verified by human experts. We use a combination of generative AI and human experts to provide you the best solutions to your problems. Ask a question now!


On the MathsGee Student Support, you can:


1. Get instant answer to your questions


2. Get expert-verified answers


3. Vote on questions and answers


4. Tip your favorite community members


5. Join expert live video sessions (Paid/Free)


6. Earn points by participating


7. Start a Fundraiser


8. Take a course


9. Enjoy our interactive learning resources



Posting on the MathsGee Student Support


1. Remember the human


2. Act like you would in real life


3. Find original source of content


4. Check for duplicates before publishing


5. Read the community guidelines




MathsGee Student Support Rules


1. Answers to questions will be posted immediately after moderation


2. Questions will be queued for posting immediately after moderation


3. Depending on the number of messages we receive, you could wait up to 24 hours for your message to appear. But be patient as posts will appear after passing our moderation.




MathsGee Student Support

Subjects

Top Users Mar 2023
  1. MathsGee
  2. Maths Genie
  3. Edzai Zvobwo
  4. Siyavula
  5. maths-genius-5eb2ff4
Top Users 2023 Mar 27 - Apr 02
  1. GaussTheBot

    39514 Points

  2. MathsGee

    25250 Points

  3. Maths Genie

    7811 Points

  4. Siyavula

    3097 Points

  5. Claudia

    2720 Points

30 points

Resources


Agriculture resources

Art & Crafts Resources

Blockchain & Crypto Resources

Business & Entrepreneurship Resources

Careers & Life Skills Resources

Communication Resources

Computer Science Resources

Cybersecurity Resources

More learning Resources

MathsGee Student Support

Most popular tags