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# Help with Question!!! C3 MATHS OCR 2008 PAPER QUESTION 6(iii) watch

1. Hi can anyone please help me with question 6(iii), I'm not quite sure how to get the solutions. Can someone please explain step-by-step. I have attached a picture of the question. Thanks
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2. (Original post by sirifromapple)
Hi can anyone please help me with question 6(iii), I'm not quite sure how to get the solutions. Can someone please explain step-by-step. I have attached a picture of the question. Thanks
Can you explain what you tried?
3. (Original post by sirifromapple)
Hi can anyone please help me with question 6(iii), I'm not quite sure how to get the solutions. Can someone please explain step-by-step. I have attached a picture of the question. Thanks
Assuming you've answered part ii) correctly, do you understand what the modulus sign does?
4. y=-f(x) is a reflection of y=f(x) in the x axis

y=f(x-k) is a translation of y=f(x) by k units in the positive x direction

You need to think carefully about how the transformations are applied as you are going from to not the other way round.
5. Thanks for the responses. I know that I have to reflect the negative part of the graph in the x-axis for part (ii), and i'm good with part 1. But how do I go about finding the solutions for part (iii).
6. (Original post by sirifromapple)
Thanks for the responses. I know that I have to reflect the negative part of the graph in the x-axis for part (ii), and i'm good with part 1. But how do I go about finding the solutions for part (iii).
Either or

Solve these two trigonometric equations.

Spoiler:
Show
You can take the sine of both sides of the equations
7. thanks guys, gottit

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