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    (Original post by ToxicPhantom007)
    hey do u think my answers are correct ? ive mentioned them above
    Well I have some of the same answers.1,2,3,4,5,8,9,10,12,13.I don't remember What I wrote for the rest,Didn't do that g(x) transformed graph and will only get method marks for integration(One of the area 'bits' I got was negative and I decided to focus more on the other questions yielding more marks than figuring out why it was negative)
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    (Original post by ToxicPhantom007)
    MY ANSWERS
    1. p=1.5, q=63
    2. a. 14.556, b. 7.278 , 30.556
    3. a. x< or equal to 4.5
    b. x> 1.5 or x< -5 and 1.5<X<4.5
    4.arithmetic series quest a)4 b)400 c)didnot solve
    5 the surd question a) k=32 b) 5 sqrt 2 c) n=50
    6. log question sim. eq. x=0.5 y=8
    7.centre(x-a)^2 + y2= a^2A= 25/8 = 3.125
    8. angle sin 19.5 and -30
    9. geometric series n= 39
    10. graph x coordinates A= 8/5 B=20/9 and in the transformed graph we had to multiply y values with 3/2
    11. Q(x)a= -10 b= 13
    12. sectorarea = 0.654
    13. some angle question pi/12 and 5pi/12
    13. integration 0.33 (i know this is not exact as asked in the question)
    Pi by 12 is out of range range from pi by 4>theeta plus pi by 4>2pi plus thita


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    [QUOTE=Saad69;65149023]I got 30 and -19.5 I think

    range was from -90 to 90.. 30 is wrong because the negative sign only tells you in which quadrant sin is negative.. so final answer was 19.5 and 330 ( sin is negative in the cos quadrant with respect to the range).. 330 because you subtract 360 and 30 ( which is in the cos quadrant where sin is negative) and 19.5 because sin-1 of ( 1/3) is only positive in the first quadrant
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    [QUOTE=Einsteinj.n.r;65187427]
    (Original post by Saad69)
    I got 30 and -19.5 I think

    range was from -90 to 90.. 30 is wrong because the negative sign only tells you in which quadrant sin is negative.. so final answer was 19.5 and 330 ( sin is negative in the cos quadrant with respect to the range).. 330 because you subtract 360 and 30 ( which is in the cos quadrant where sin is negative) and 19.5 because sin-1 of ( 1/3) is only positive in the first quadrant
    i am sorry but you are wrong... the correct answer is -30 and 19.5. 330 lies beyond the given range
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    [QUOTE=Ibrahim Rampuri;65187551]
    (Original post by Einsteinj.n.r)

    i am sorry but you are wrong... the correct answer is -30 and 19.5. 330 lies beyond the given range
    so no marks for me?
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    [QUOTE=Saad69;65188749]
    (Original post by Ibrahim Rampuri)

    so no marks for me?
    what did u get?
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    [QUOTE=Ibrahim Rampuri;65188797]
    (Original post by Saad69)

    what did u get?
    30 and -19.5
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    [QUOTE=Saad69;65188845]
    (Original post by Ibrahim Rampuri)

    30 and -19.5
    Does anyone remember the question?? Then maybe we can solve it again.
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    [QUOTE=Ibrahim Rampuri;65187551]
    (Original post by Einsteinj.n.r)

    i am sorry but you are wrong... the correct answer is -30 and 19.5. 330 lies beyond the given range
    I cant remember what I wrote exactly but -30 is wrong since the negative sign is supposed to guide you.. so it should have actually been 30 and not -30 ( I confirmed with my classmates as well)
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    [QUOTE=Einsteinj.n.r;65189693]
    (Original post by Ibrahim Rampuri)

    I cant remember what I wrote exactly but -30 is wrong since the negative sign is supposed to guide you.. so it should have actually been 30 and not -30 ( I confirmed with my classmates as well)
    So I am correct 30 and -19.5?

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    [QUOTE=Saad69;65190309]
    (Original post by Einsteinj.n.r)

    So I am correct 30 and -19.5?

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    I'm pretty sure its -30 and 19.5
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    [QUOTE=Saad69;65190309]
    (Original post by Einsteinj.n.r)

    So I am correct 30 and -19.5?

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    30 is fine but -19.5 is not ( its supposed to be 19.5 ) cause it was sin-1 of (1/3) which 19.5.. you'll probably score 2/4 marks which is fair enough provided you had shown your steps:-)
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    [QUOTE=Einsteinj.n.r;65191111]
    (Original post by Saad69)

    30 is fine but -19.5 is not ( its supposed to be 19.5 ) cause it was sin-1 of (1/3) which 19.5.. you'll probably score 2/4 marks which is fair enough provided you had shown your steps:-)
    I wrote 30 but I got -30. I did that because when I was going through the paper I remember my teacher telling us that u don't write the sign because it just helps us guide.
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    [QUOTE=Sunethra;65191401]
    (Original post by Einsteinj.n.r)
    I wrote 30 but I got -30. I did that because when I was going through the paper I remember my teacher telling us that u don't write the sign because it just helps us guide.
    Yeah that's why I'm telling these other guys that its 30 and not -30 you're right
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    [QUOTE=wenogk;65190595]
    (Original post by Saad69)

    I'm pretty sure its -30 and 19.5
    yes tbh i had 30 and -19.5 at first and like last 5 mins I changed it to this and it's the correct answer
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    [QUOTE=Sunethra;65191401]
    (Original post by Einsteinj.n.r)
    I wrote 30 but I got -30. I did that because when I was going through the paper I remember my teacher telling us that u don't write the sign because it just helps us guide.
    she only meant that when trying to find out the sin value but that doesnt mean u dont use the negative region; which is supposed to give -30
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    I'm pretty sure the range was -180 to 180 and when the range includes negatives, you go in the clockwise direction as well and you take it angles as negatives
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    (Original post by Najlac)
    I'm pretty sure the range was -180 to 180 and when the range includes negatives, you go in the clockwise direction as well and you take it angles as negatives
    the range was -90 to 90, but ya what ur saying is right..
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    (Original post by Imran hasan)
    what was the answer least value of n
    'Twas 39 I think
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    [QUOTE=Einsteinj.n.r;65192321]
    (Original post by Sunethra)

    Yeah that's why I'm telling these other guys that its 30 and not -30 you're right
    I got -30 and 19.5. I do think the sign is important as it indicates whether the angle is clockwise or anti-clockwise. I tried putting -19.5 and 30 into the calculator but they give sin with negative value.
 
 
 
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