UPSSSC PET 2023: DI विगत वर्ष प्रश्न हल

Determinants and Properties for Engineering Mathematics

Vishal Soni Sir introduces Linear Algebra, focusing on determinants, their evaluation methods, and properties for square matrices. The lecture covers shortcut methods for 3x3 determinants, rotation patterns, minors, cofactors, and valid row/column operations for exam preparation.

• Maths
• English
• 5 topics
• 27 Oct 2026
• By GATE Wallah

• UPSC
• Other State PSC

Mensuration 2D: Triangles and Circles Concepts & PYQs

This lecture covers the foundational concepts, classifications, and formulas of 2D mensuration focusing on triangles and circles. It explains triangle existence conditions, classification by sides and angles, Pythagorean triplets, sector area, and concentric circles. Several previous years' questions from exams like LDC, CET, REET, and Forest Guard are solved in detail.

• Maths
• English
• 8 topics
• 22 Oct 2026
• By MATHS BY JAIDEEP SIR

• Other State PSC
• SSC
• Teaching

UPSSSC PET 2023: DI (ग्राफ) प्रीवियस ईयर प्रश्न हल (पार्ट-02)

इस लेक्चर में आकाश शर्मा सर द्वारा UPSSSC PET 2023 परीक्षा में पूछे गए डेटा इंटरप्रिटेशन (DI) के कठिन एवं महत्वपूर्ण प्रश्नों को हल कराया गया है। इसमें कार्य एवं समय आधारित ग्राफ, खाड़ी देशों में रोजगार प्रतिशत, लाभ-हानि एवं छूट आधारित तालिका, विज्ञापन व्यय तथा ट्रेनों की गति व दूरी संबंधी रेखा आलेख शामिल हैं। विभिन्न शॉर्ट ट्रिक्स, अनुपातिक विधियों और बेसिक फॉर्मूलों से जटिल गणनाओं को सरल बनाना सिखाया गया है।

• Maths
• हिन्दी
• 6 topics
• 22 Oct 2026
• By Rojgar with Ankit

• Other State PSC

Introduction to Group Theory: Groupoid to Abelian Group

Dr. Gajendra Purohit explains the foundational definitions of abstract algebra including groupoids, semigroups, monoids, groups, and abelian groups. The lecture illustrates these algebraic structures with sets such as natural numbers, integers, and matrices under various operations. It also covers concepts of finite and infinite groups along with the order of a group.

• Maths
• English
• 7 topics
• 27 Oct 2026
• By Dr.Gajendra Purohit

Class 9 Maths Chapter 1: Number System Full Revision

This lecture covers the fundamentals of the number system for Class 9 Maths according to NCERT. It explains real numbers, classification of rational and irrational numbers, decimal expansions, locating irrationals on a number line, laws of exponents, and rationalisation.

• Maths
• English
• 8 topics
• 27 Oct 2026
• By Shobhit Nirwan - 9th

• Class 9

Class 12 Matrices: Complete One-Shot Revision Notes

This one-shot lecture covers fundamental matrix concepts for Class 12 mathematics, including definitions, order, and elements. It details matrix operations such as addition, scalar multiplication, and matrix multiplication conditions. Additionally, it explores special matrices like symmetric, skew-symmetric, and orthogonal matrices, as well as properties of transpose and trace.

• Maths
• English
• 7 topics
• 27 Oct 2026
• By MP Board Wallah

• Class 12 Science
• Class 12 Commerce