pine-apple01320
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Which topic do you think is the hardest in the new syllabus for 4u maths?
Wouldnt be so sure vectors will be easy. Alot of material in textbooks is, but the actual stuff they put up is nothing like whats in the textbooks.Vectors <= Mechanics < Integration < Complex Numbers <<<<<<< Proof
(Both the topics themselves and typical exam questions)
Literally just substitue the line equation and solve for lambda in |v - c| = r for i, then for ii make a sphere of radius r and centre a, b, c, then use vector rules to find expressions for other points in the question, sub into the formula and prove that it equals 0.Wouldnt be so sure vectors will be easy. Alot of material in textbooks is, but the actual stuff they put up is nothing like whats in the textbooks.
can you show this in extended working please?Literally just substitue the line equation and solve for lambda in |v - c| = r for i, then for ii make a sphere of radius r and centre a, b, c, then use vector rules to find expressions for other points in the question, sub into the formula and prove that it equals 0.
Just tests the theory, not the application
Hope this helps. Correct me if im wrong (see attachment), I dont know if there are solutions to the papercan you show this in extended working please?
thanks so much!Hope this helps. Correct me if im wrong (see attachment), I dont know if there are solutions to the paper
sorry i meant part 3 of this questionWouldnt be so sure vectors will be easy. Alot of material in textbooks is, but the actual stuff they put up is nothing like whats in the textbooks.
also 5u, in this solution of yours you mentioned use part (i), what is part (i)?Hope this helps. Correct me if im wrong (see attachment), I dont know if there are solutions to the paper
This was from the sample from nesa. Part i asked prove that a *(b+c)=a*b+a*c (dot product)can anyone help?