Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

andu1854

Verify the Identity: (tan x + tan y)/(cot x + cot y) = (tan x tan y - 1 ) / (1-cot x cot y )

  • one year ago
  • one year ago

  • This Question is Closed
  1. jishan
    Best Response
    You've already chosen the best response.
    Medals 0

    lhs= tanx+ tany/cotx+coty=tanx.tany rhs= tanx.tany-1/1-cotx.coty=tanx.tany

    • one year ago
  2. andu1854
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you, for the help, however, I am still trying to solve it... the goal is to show the steps how the left side will equal the right side. I decided to convert tan to cos/sin and got stuck. Attempted to use tan and cot and got even more stuck. I am interested to see what I am doing wrong... Here is a PDF of what I attempted.. and the equation... I need to verify... [(tanx+tany)/(\cot x+\cot y) = (\tan x \tan y-1) / (1 -\cot x \cot y\]

    • one year ago
    1 Attachment
  3. dhanamkoilraj
    Best Response
    You've already chosen the best response.
    Medals 0

    @andu1854 your second step is wrong

    • one year ago
  4. andu1854
    Best Response
    You've already chosen the best response.
    Medals 0

    yes, I actually started over and was able to get tan x tan y =, but I was not sure how to set up the double angle for tan, unlike for sin & cos...

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.