Trig. Ratios

Reply to Thread

Discussion in 'Math' started by Steve1992, Oct 10, 2006.

Reply to Thread
  1. Oct 10, 2006 #1
    Steve1992

    Thread Starter Senior Member

    Apr 7, 2006
    100
    0
    Is there an easy method on how to remember the trig. ratios on a right angled triangle...tan, cos, sin..?

    I always find myself referring to my notes.
     
    #1 Reply
  2. Oct 10, 2006 #2
    Papabravo

    Expert

    Feb 24, 2006
    10,836
    2,033
    From my class in conventional machining which I took at the local community college

    SOH CAH TOA (pronounced SOO-KAA-TOW-AH). I forget the slightly filthy acronym that goes with it, but it decodes as:

    SOH - Sine is Opposite over Hypoteneuse
    CAH - Cosine is Adjacent over Hypoteneuse
    TOA - Tangent is Opposite over Adjacent
     
    #2 Reply
  3. Oct 10, 2006 #3
    electro eto

    New Member

    Oct 5, 2006
    4
    0
    well i always use OHSAHCOAT. the pronounciation alone could not be any easier.

    OH=S i.e OPPOSITE/HYPOTHENUS =SINE

    AH=C i.e ADJACENT/ HYPOTHENUS =COSINE

    OA=T i,e OPPOSITE/ADJACENT = TANGENT

    well thats the easiest way i learn it. work form me so hopefully it should work fro u too.
     
    #3 Reply
  4. Oct 10, 2006 #4
    Steve1992

    Thread Starter Senior Member

    Apr 7, 2006
    100
    0
    Thanks all.
    I'll give them a try.

    Steve
     
    #4 Reply
  5. Oct 10, 2006 #5
    Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    150
    A favourite phrase of mine for remembering SOHCAHTOA was:

    Smiles Of Happiness Come After Having Tankards Of Ale

    You may also begin enjoying trigonometry!

    Dave
     
    #5 Reply
  6. Oct 10, 2006 #6
    Papabravo

    Expert

    Feb 24, 2006
    10,836
    2,033
    Sorry Dave, it may be mnemonic, but it fails the "slightly filthy" criteria.

    ROFL
     
    #6 Reply
  7. Oct 11, 2006 #7
    Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    150
    Accepted, but it is very true.....and there is some educational value in it! :D

    Dave
     
    #7 Reply
Loading...
Related Forum Posts:
  1. amilton542

    Trig' Integrands

    Posted by amilton542 in forum: Math
    Replies:
    6
    Views:
    1,362
  2. AnthonyWDJr

    Impedance and Trig Functions

    Posted by AnthonyWDJr in forum: Homework Help
    Replies:
    1
    Views:
    1,315
  3. victorhugo289

    Small Trig problem

    Posted by victorhugo289 in forum: Homework Help
    Replies:
    15
    Views:
    2,599
  4. relicmarks

    RATIO's op-amp & resistor ratios

    Posted by relicmarks in forum: General Electronics Chat
    Replies:
    2
    Views:
    1,905
  5. Philz

    Negative edge trig device - Multisim

    Posted by Philz in forum: The Projects Forum
    Replies:
    7
    Views:
    3,453
  6. pmt

    Transfer Ratios

    Posted by pmt in forum: Homework Help
    Replies:
    2
    Views:
    1,656
You May Also Like:

  1. Build a Wireless 'Tipping Bucket' Rain Gauge, Part 1—Assembling the Bucket

  2. Google Partners with Lenovo and HTC for Standalone VR Headsets

  3. Atmel, Microchip, and the IoT Writing on the Wall


Load More