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Mathematical reasoning

NCERT solutions for class 10 maths Chapter 8 Introduction to Trigonometry 2 Ratio values for selected angles


In this 4 part series, the topic Introduction to trigonometry is covered, complementing Chapter 8 of NCERT Class 10 Maths. This second part deals with values of trigonometric ratios for selected angles...

10 Digit number puzzle of John Conway with solution


Find the 10 unique digit number having the special property that the number formed by digits from left to right up to the place for each of the 10 places is divisible by the place number—is a beautiful puzzle presented by John Conway. It is a large and complex puzzle but can be solved using only the basic concepts taught in middle schools…


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