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    (Original post by mxn)
    So you know for the matric question were we suppose to multiply the numerater and denominator of the first matric by 4 or were we suppose to multipy just the numerator by 4?
    These were matrices not fractions!! You had to multiply both the top and bottom parts by 4 I believe. I think I got a=3 and b= -20 (or 20, not sure what I put)
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    (Original post by PrinceKian)
    You had to use the trig identity: sin^2x + cos^2x = 1. Put in the x value (or theta value) and then solve for cos, eventually ending up with the +/- square root of 5/6 and as it was an obtuse angle it had to be a negative value, ending up with -5/6. XD
    Oh ****, I wrote 5/6, would I lose a mark or more than 1 mark?
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    (Original post by BW999)
    These were matrices not fractions!! You had to multiply both the top and bottom parts by 4 I believe. I think I got a=3 and b= -20 (or 20, not sure what I put)
    I got that too and I don't even know how to do matrices lmao so don't trust me...
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    (Original post by BW999)
    These were matrices not fractions!! You had to multiply both the top and bottom parts by 4 I believe. I think I got a=3 and b= -20 (or 20, not sure what I put)
    YES! thank god i got the same 3 and -20
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    Can someone explain that question about K to me please?
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    (Original post by mxn)
    So you know for the matric question were we suppose to multiply the numerater and denominator of the first matric by 4 or were we suppose to multipy just the numerator by 4?
    A matrix doesn't have numerators or denominators to speak. It was a scalar multiplication meaning four times everything in the matrix.
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    (Original post by Chittesh14)
    Can someone explain that question about K to me please?
    You had to work out K. You had to work it out at the point where it touched the X axis, and then work out what the Y value would be without K. Then as the value of Y was -9 and the curve stopped at the X axis, K had to be 9 to make it 0.
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    (Original post by gregy521)
    Seemed like a reasonable paper, the one about the obtuse angle was a tough one though. I couldn't answer that one.
    I managed to figure it out, but put the solution for an acute angle I think I'll still pick up most of the marks
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    (Original post by gregy521)
    You had to work out K. You had to work it out at the point where it touched the X axis, and then work out what the Y value would be without K. Then as the value of Y was -9 and the curve stopped at the X axis, K had to be 9 to make it 0.
    Oh ffs.
    I knew x = 0 lol and that's it lmao for the tangent.
    I was thinking like you can't factorise this crap because it's got k ...
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    (Original post by mypetpikachu)
    I decided to out 5 for that one..with no working out what so ever...


    🏹🍆Never under estimate the power of a common pikachu🍆🏹
    Thug life lol.
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    (Original post by Chittesh14)
    Thug life lol.
    😝😝😂


    🏹🍆Never under estimate the power of a common pikachu🍆🏹
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    (Original post by lily628)
    how did people do the last q? i used the cosine rune but then was stumped after a few more steps
    Cosine rule.
    Cos P = 1/3.
    Use the rule, you find u have to do 4/12 to get 1/3.
    So, you do 13n^2 - 4n^2 = 9n^2
    That's w^2 so w = 3n.
    w = 3n same as the other side, so the triangle is isoceles.
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    What did u guys put for the infinity question...?


    🏹🍆Never under estimate the power of a common pikachu🍆🏹
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    (Original post by mypetpikachu)
    What did u guys put for the infinity question...?


    🏹🍆Never under estimate the power of a common pikachu🍆🏹
    3/5 lmao.
    Don't even know if its right and don't understand how it's 1 mark.
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    3/5 is correct

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    (Original post by Hsevras)
    3/5 is correct

    Posted from TSR Mobile
    <3.
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    (Original post by Chittesh14)
    3/5 lmao.
    Don't even know if its right and don't understand how it's 1 mark.
    Oh....I put 10000000000000.....


    🏹🍆Never under estimate the power of a common pikachu🍆🏹
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    (Original post by Hsevras)
    3/5 is correct

    Posted from TSR Mobile
    Lmao...that just shows how not doing revision is the worst thing possible...


    🏹🍆Never under estimate the power of a common pikachu🍆🏹
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    (Original post by Chittesh14)
    Oh ****, I wrote 5/6, would I lose a mark or more than 1 mark?
    5/6 is the answer

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    (Original post by mypetpikachu)
    Lmao...that just shows how not doing revision is the worst thing possible...


    🏹🍆Never under estimate the power of a common pikachu🍆🏹
    I revised 140 pages yesterday in 1 hour .
    Basically, most of it I done in A-level Maths C1 lool.
    I forgot how to fkin differentiate in the exam lol but it came in my head after.
 
 
 
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