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How can I solve this C3 Trigonometric question? (June 2015, Question 8, AQA)

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http://www.thestudentroom.co.uk/attachment.php?attachmentid=527941&stc=1&d=1462282370

Show: 4cosec^2x - cot^2x = k can be written as sec^2x = (k-1)/(k-4)
(edited 7 years ago)
Reply 1
Original post by Itsallaconundrum
The Question is Attached
http://www.thestudentroom.co.uk/attachment.php?attachmentid=527941&stc=1&d=1462282370

Show: 4cosec^2x - cot^2x = k can be written as sec^2x = (k-1)/(k-4)

IMG_20160426_193210_edit.jpg
Original post by RUNSran
IMG_20160426_193210_edit.jpg


Thank you so much!

Very kind of you to write it out, I appreciate it :smile:

But this is quite complex, is there a way I can get my reasoning in a way to answer any similar questions which are equally as complex?
(edited 7 years ago)
Reply 3
Original post by Itsallaconundrum
Thank you so much!

Very kind of you to write it out, I appreciate it :smile:

You are welcome :smile:

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