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maths help

given that sin x cos y =3 cos x sin y express tan x in terms of tan y
(edited 1 year ago)
Original post by blankasap
given that sin x cos y =3 cos x sin y express tan x in terms of tan y


Hint: tan(u) = sin(u) / cos(u). Try rearranging the given expression with that in mind.
What is the relationship between tan, sin and cos?
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blankasap
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Original post by T!gger34
What is the relationship between tan, sin and cos?


tan theta = sin theta divide by cos theta, im stuck on how the markscheme shows sin x cos y / cos x cos y= 3 cos x sin y /cos x cos y
Original post by blankasap
tan theta = sin theta divide by cos theta, im stuck on how the markscheme shows sin x cos y / cos x cos y= 3 cos x sin y /cos x cos y


Ignore the mark scheme and try the question with the hints.
Cancel terms. Identical terms just gives 1 and remember the tan x = sin x/cos x relationship.
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blankasap
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Original post by Muttley79
Ignore the mark scheme and try the question with the hints.


thank you idk why the mark scheme complicated it :redface:
Original post by blankasap
thank you idk why the mark scheme complicated it :redface:


I tell my students NOT to look at markschemes but just keep trying - often struggling with a question and then solving it is so much better for your progress.

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