Mathematics by Infinity

Confused between continuous and discontinuous functions?
This question looks simple but most students pick the wrong option!
Watch this short trick to instantly identify which function can become discontinuous.
Perfect for JEE, SSC, Railway, CHSL, CGL, NDA, CUET & all competitive exams.
Follow Mathematics by Infinity for daily powerful maths shortcuts and concepts!

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Want to find the remainder of 1! + 2! + 3! + … + 95! in just a few seconds?
This is one of the smartest factorial tricks for SSC, Railway, CHSL, CGL, GD, State Exams & all competitive exams.
Watch the full solution and learn how to crack such questions instantly!
Follow Mathematics by Infinity for daily smart maths tricks.

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A regular hexagon is inscribed in a circle. Find the ratio of the area of the circle to the area that is NOT covered by the hexagon.

This question is extremely popular in SSC, RRB, State PSC, NDA, CDS, Banking, and other competitive exams.
Students often get stuck because they don’t know the relation between the circle radius and hexagon side, and the fastest way to compute the remaining area.

In this video, I explain:
✔ How to find area of a regular hexagon in 5 seconds
✔ Direct relation between side and radius
✔ How to calculate the uncovered region smartly
✔ Shortcut method for MCQs
✔ Most repeated exam trick

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Unlock the fastest method to solve this interesting math problem!
We find the value of x for which the expression x + 4x² becomes minimum — a concept from Applications of Derivatives / Quadratic Optimization.
Perfect for Class 10, 11, 12, competitive exams & math lovers!
Watch till the end and boost your maths learning with Mathematics by Infinity.
Let’s make maths simple, easy, and fun!

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