There was an Olympiad question of evaluating the sum arccot(2) + arccot(3) by geometrical approach. My issue is how can you use only one figure to evaluate sum of infinite series of angles arccot(3) + arccot(7) + arccot(13)+….and show that ...
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What’s the correct and logical reason to multiply probabilities along branches and add probabilities in tree diagrams?
පෙළ පොත් (Textbooks), උදාහරණයක් විදිහට 10 වසර ගණිත පෙළ පොත ගමු, මෙහි එන fonts, font size , colour theme(නිල්), රූප ඇද ඇති ආකාරය (illustration) යන දෑ සිසුවාගෙ ඉගෙන ගැනීමේ ක්රියාවලියට බලපානවා යැයි ඔබ සිතනවද? (නිමිත්ත – Sarah Hyndman ගේ Why ...
Usually we prove results related to powers of sums algebraically. How can you illustrate geometrically powers of sums basically for powers 1,2,3 ?
Zoro Diamention ( 0 D ) අර්ථයක් තිබේද? ද්විමාන තලය ,3D ,4D ලෙස සංකල්පයන් ගොඩනැගෙන තැන 0 D පිලිබද ඔබගේ අදහස කුමක්ද?
What is the last digit of 2^2015 ?
Why ටීට asmani 0 kiyala ganne
How can you prove that, f'(α) = 0 is not a necessary condition to exist a minimum point at x = α on the graph of y = f(x) ,where f'(x) is the derivative of f(x).
