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ooh now that makes more sense!assalamoalaikum wr wb!
alright...now u know the other angle would be 360 - 50.76 ...right? but that is out of the range given..now remember that in the fourth quadrant angle can either be 360 - x or alternatively be written as "-x "
so we have
(2x-71.6) = 50.76 and (2x-71.6) = - 50.76
that's how u'll get the other angle
Okay one more doubt, O/N/11 p32 q6 pt. (ii)
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_qp_32.pdf
Edit: Changed p31 to p32 , apologies!
question 6 :http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s11_qp_31.pdf
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s11_ms_31.pdf
can someone do no.6 mmm confused
question no.8 how to show the arguement u is PIE/2 i knw its pie by 2 since i got u=-3i but how to show should i draw a graph or i should just say that the cordinates (0,-3i) lies on the y axis thus the angle made with the x axis is -pie/2
Anyone :?
and question no.10
well the above questions are my prev post which no1 has answerd
if u mean for part ii , then u just assume any value, I assumed it was 2
what should we do if Rsin(x-theeta) is the condition.How will we find the second answer in the range?assalamoalaikum wr wb!
alright...now u know the other angle would be 360 - 50.76 ...right? but that is out of the range given..now remember that in the fourth quadrant angle can either be 360 - x or alternatively be written as "-x "
so we have
(2x-71.6) = 50.76 and (2x-71.6) = - 50.76
that's how u'll get the other angle
u write the " 2/5 pi + sin (theta) " on your calculator , replacing theta with the value 2.1 and press = , write the answer correct to 3 decimal places , then replace the 2.1 value on your calculator , using the " ans" button , and get theta 3 , keep pressing = and writing down the values till they give u the same value correct to 2 decimal places , in this question it will be 2.11
Integrating this gives you ---> ln (1+x^2)/2
Yes exactly this. So the equation is -3 ln (1) +2 ln (4+1) + 3 ln(2-0) - 0 = ln25 + ln8 . What am I doing wrong?
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