# Drongoski's latest activity

• Drongoski reacted to jimmysmith560's post in the thread Complex q with Like.
Would the following working help? PQRS is a square. \therefore RP=SQ\:and\:RP\:\perp \:SQ i.e. \overrightarrow{SQ}=i\times...
• Try to find out why you were not doing better? What areas were you having difficulties in your MX1; can you do better with more effort...
• Drongoski reacted to yanujw's post in the thread How do I improve in Maths? with Like.
Go to THSC and do many, many practice tests to prepare for your yearly. Make sure you are doing them under exam conditions and marking...
• Drongoski replied to the thread How do I improve in Maths?.
You need to provide more details of what happened. Which new topics were you experiencing problems with. When you got lower marks, why...
• Drongoski reacted to jimmysmith560's post in the thread maths qn help with Like.
Would the following working help? Find the equations of the two circles in the first quadrant. Since the x-axis and y-axis are both...
• Drongoski replied to the thread Geometric Proving.
Above from an old Signpost Year 8 Book. Say we are given a parallelogram ABCD. e start with the definition of the parallelogram, in this...
• Drongoski replied to the thread Geometric Proving.
• Drongoski replied to the thread Geometric Proving.
When I was in my Primary and Secondary school, classical (Euclidean) Geometry was an important part of our Maths curriculum. If you are...
• Drongoski reacted to Lith_30's post in the thread Difficult complex geometry q with Like.
I would recommend finding the modulus and the argument separately. For the modulus you would use pythag OD^2=OA^2+AD^2 Given that since...
• y = 8x + 5 So, take any point on the line like (1, 13) or (0, 5) Gradient m = 8 means x : y = 1 : 8 so a direction vector is \binom 1...
• Drongoski replied to the thread Vector q.
Given line equation does not look correct. Maybe intended to be: 2i + 4j+ l(-2i + 7j) ???
• Drongoski reacted to jimmysmith560's post in the thread help with Like.
Would the following help? Note that the following answers \cos x+\cos 3x+\cos 5x+\cos 7x=0, the minor difference being the order of the...
• Drongoski replied to the thread One More Q.
\frac{d ln(ln x)}{dx} = \frac{d ln(ln x)}{d lnx}\times \frac{dln x}{dx} = \frac{1}{ln x} \times \frac{1}{x} = \frac {1}{xln x}
• Drongoski replied to the thread q help.
• Drongoski replied to the thread Tips for inequality proofs.