Turn on thread page Beta
    • Thread Starter
    Offline

    13
    ReputationRep:
    How would you solve this trig equation?

    sin(a) + cos(a) = 1

    Thank you )
    Online

    12
    ReputationRep:
    (Original post by emx_eco)
    How would you solve this trig equation?

    sin(a) + cos(a) = 1

    Thank you )
    The easiest way is to use a method called harmonic form (also known as the R - alpha method). Does this sound familiar to you?
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by Pangol)
    The easiest way is to use a method called harmonic form (also known as the R - alpha method). Does this sound familiar to you?
    yeah it does, i'll try it now and get back to you- thanks
    Offline

    21
    ReputationRep:
    (Original post by Pangol)
    The easiest way is to use a method called harmonic form (also known as the R - alpha method). Does this sound familiar to you?
    Any idea why it's called the harmonic addition theorem?
    Online

    12
    ReputationRep:
    (Original post by Desmos)
    Any idea why it's called the harmonic addition theorem?
    You know, I really don't know why this is called harmonic form, but I can see that one useful application would be simple harmonic motion, so perhaps that's it.
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by Desmos)
    Any idea why it's called the harmonic addition theorem?
    no idea
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by Pangol)
    The easiest way is to use a method called harmonic form (also known as the R - alpha method). Does this sound familiar to you?
    I think I get it now, thanks for your help
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: October 15, 2017
Poll
Favourite type of bread
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.