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
    11,548
    2,388
    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
    163
    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
    11,548
    2,388
    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
    163
    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:
    1,546
  2. AnthonyWDJr

    Impedance and Trig Functions

    Posted by AnthonyWDJr in forum: Homework Help
    Replies:
    1
    Views:
    1,434
  3. victorhugo289

    Small Trig problem

    Posted by victorhugo289 in forum: Homework Help
    Replies:
    15
    Views:
    2,760
  4. relicmarks

    RATIO's op-amp & resistor ratios

    Posted by relicmarks in forum: General Electronics Chat
    Replies:
    2
    Views:
    1,989
  5. pmt

    Transfer Ratios

    Posted by pmt in forum: Homework Help
    Replies:
    2
    Views:
    1,728
You May Also Like:

  1. Embedded PID Temperature Control, Part 5: Adjusting Gains

  2. An Introduction to the CORDIC Algorithm

  3. How to Generate a High-Precision Waveform Using a DAC and a Custom PCB


Load More