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Monthly Archives: December 2025
Fermat contest 2022 Problem 19 on area of the triangle
In the diagram PQR is right angled at R, PR =12, QR =1 6. Also M is the midpoint of PQ and N is the point on QR so that MN is perpendicular to PQ. Find the area of triangle … Continue reading
Fermat Contest 2022 Problem 22 on Tilting of Rectangle
A rectangle with dimensions 100 cm by 150 cm is tilted so that one corner is 20 cm above a horizontal line as shown. To the nearest centimeters, the height of vertex A above the horizontal line is 100+x cm. … Continue reading
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Differential Equations Variable Separable Practice
Variable separable is one of the basic differential equation. Here are some example for practice Continue reading
AP Calculus BC Euler’s Method (2 step)
Consider the differential equation with initial condition . Find the difference between the exact value of and the Euler approximation of using two equal steps.
Geometry Fundamentals Problem 1
An isosceles triangle with 3 sides being equal and a perpendicular is drawn to one of the side as shown in the above fig. Show that
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