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    (Original post by Zacken)
    Factor - no.

    R - yes.
    Hi,

    I wish to question this.
    For Edexcel I was told by my teacher not to bother with the trig factor forumla. And I have never seen it in a question before. However why is it given in the formula booklet?
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    (Original post by asherdan1997)
    Hi,

    I wish to question this.
    For Edexcel I was told by my teacher not to bother with the trig factor forumla. And I have never seen it in a question before. However why is it given in the formula booklet?
    In case you want to use it as an alternative method to answer questions. However it is never necessary nor required in any paper. It is not tested directly as it is not on spec.
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    (Original post by Zacken)
    In case you want to use it as an alternative method to answer questions. However it is never necessary nor required in any paper. It is not tested directly as it is not on spec.
    Wonderful thank you. I've only ever seen it in a solomon paper once so I didn't bother learn it. That is a relief as my exam is tomorrow.

    Thank you.
 
 
 
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