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# C1: HELP NEEDED on 2 maths questions watch

1. I don't know what to do with these two questions (I can do 4a)

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2. Could we have the question?

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3. Forget that, it's just loaded

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4. (Original post by Isis_on_the_cake)
Forget that, it's just loaded

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Aha yeah, it's been a bit slow recently!
5. 4(b) So once you know k you can work out the terms ... what is the common difference? Once you know that then you can continue the sequence ...

5 How many times does a line that is a tangent cut a curve?
6. (Original post by Muttley79)
4(b) So once you know k you can work out the terms ... what is the common difference? Once you know that then you can continue the sequence ...

5 How many times does a line that is a tangent cut a curve?

I got the right answer for the sequence question but I don't understand what they did here to get the answer:

And a tangent cuts a curve once!
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7. (Original post by creativebuzz)
I got the right answer for the sequence question but I don't understand what they did here to get the answer:

And a tangent cuts a curve once!
24 is the largest multiple of 8 that is smaller than 25. Hence, the smallest positive term is 25 - 24 = 1.
8. (Original post by morgan8002)
24 is the largest multiple of 8 that is smaller than 25. Hence, the smallest positive term is 25 - 24 = 1.
Oh okay, thanks
9. So how do you find where the line cuts the curve? Then you know the equation has one solution i.e. two equal roots so the discriminant must be ....

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