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mmmm why cant 3^y=-3/4
Q4 ii) MAT/JUNE 2011/31
Because to calculate y you'll need to calculate ln(-3/4)/ln(3) & ln(-ve number) is never possible!
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mmmm why cant 3^y=-3/4
Q4 ii) MAT/JUNE 2011/31
thanksalready did it here man...
http://www.xtremepapers.com/communi...st-your-doubts-here.9599/page-127#post-228526
help needed in q6 ii
12 × 27^y + 25 × 9^y − 4 × 3^y − 12 = 0
One of the factors is 2x^2 − 3x + 3hey can anyone show & explain the complete working for q5(ii) that will earn all 3 marks in http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w08_qp_3.pdf ??
thanks...
(http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w08_ms_3.pdf
&
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w08_er.pdf)
Post the whole question with link to the p.p and m.s !how do we solve this z^6=-64
https://docs.google.com/viewer?a=v&...ufarCv&sig=AHIEtbR25jP8EKBUeSdXW_ilg8B8yTawGwPost the whole question with link to the p.p and m.s !
I think this is a question from complex numbers.
Next time post the link to the m.s as well!Can anyone explain to me why q10 (ii) answer is 1800 ?Please help me ! 2moro is my exam !How to get the initial value ?
Its simple:
thanks a bunchIts simple:
Break the power 6 into 3 times square and solve for both roots one by one
Like this:
(− root(3) + i)^2 * (− root(3) + i)^2 * (− root(3) + i)^2
Btw, are you a teacher ?
View attachment 9581
w = -1 + i
w^2 = 0 - 2i
To find centre of circle, use midpoint formula:
= [ {(-1 + 0) / 2} , {(i - 2i) / 2} ]
= [-0.5 , -0.5i ]
To find radius find half the length of w to w^2
= 0.5 * | {-1 - (0)} , {i - (-2i)} |
= 0.5 * | -1 , 3i |
Find length by taking modulus
radius = 0.5 * root [ (-1)^2 + (3)^2 ]
= 0.5 * root [1 + 9]
= 0.5 * root (10)
Now write the equation in the form |z − (a + bi)| = k
where (a + bi) is the coordinate of the centre of the circle
and k is the radius
http://www.xtremepapers.com/CIE/International A And AS Level/9709 - Mathematics/9709_s04_qp_3.pdf
Q6..
ive reached till this point..dunno how to continue..
ln y + (y^3/3) = x +(1/3)
Please help!!
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