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Pakistan Studies, Islamiyat and Urdu: Post your doubts here!
HEY EVERYONE! Please help me out as I didn't get good grades in these 3 subjects myself... My bro is giving 9 Subjects in Grade 10. 6 IGCSEs n 3 O level ones (2058, 2059, 3248) Can u recommend me some good books for Pak Studies n Islamiat? Reply ASAP...- Fiery987
- Post #9,103
- Forum: O-Levels / GCSEs / IGCSE
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Mathematics: Post your doubts here!
Shouldn't it be √(6²+6²) for q and likewise for p? And what about 'arg' part? -
Mathematics: Post your doubts here!
60 - 70 %. Chemistry is OK. Math P3 needs some practice. I rock in Physics but I was never good in Statistics (S1 in this case) . How about you? -
Mathematics: Post your doubts here!
Ohhh, right. Thanks a lot! -
Mathematics: Post your doubts here!
Um, why did you eliminate x if x>0? x can't be 1 only. -
Mathematics: Post your doubts here!
Um, I just posted the Part (ii) explanation. Refresh your browser. -
Mathematics: Post your doubts here!
DON'T read the first part where I crossed it. The answer starts from |z-2i| = 4 Well, I used the relationship given in part (i). As they made us prove it, there must be some use of it, right? But I did it this way (as I proved in reverse) : because |z|^2 = zz*... -
Mathematics: Post your doubts here!
Whoa, man! To find mod of a complex no., you use this formula: If z = a+bi then |z| = sqrt(a^2+b^2) because if you plot z on an Argand diagram, you can find the length of the line (from origin to z) using Pythagoras theorem as it makes a triangle. And that length is mod of z. You getting it... -
Mathematics: Post your doubts here!
OK! Here's the solution to Complex no. question (#7). Part (i) is easy while in Part (ii), you should remember that the given eq. can be proven if you work the other way round (from answer to question). But both ways are OK. P.S. Our Teacher discussed this question with us in school and we... -
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Mathematics: Post your doubts here!
For Polynomial Question: Use Factor theorem {subs. x = -0.5 into p(x) = 0} and obtain a-2b = -8 Use Remainder theorem {subs. x = 0.5 into p(x) = 1} and obtain a+2b = -12 Solve both of them simultaneously and you get a = 10 and b = -11 -
Mathematics: Post your doubts here!
For Vector question, I used this approach but got weird values of b and c. Must be a silly mistake. I am just writing the steps as the actual answer is way too long! First, write down the vector for normal of plane p and q Use Dot product { np.nq = |np| x |nq| x cos 60 } Obtain equation... -
Mathematics: Post your doubts here!
Those Questions sure are tough! I am also stuck at Complex no. (first one) and Q4 (ii). -
Mathematics: Post your doubts here!
Need help ASAP M/J 2014 P12 Q#2 (Binomial Part) How do we DO these type of questions??? -
Chemistry: Post your doubts here!
M/J 2010 P22 Q#5 b (iii) I wrote Al2O3 as it is found in pumice. How is the answer only SiO2??