# Welcome To OnlinePSA.in…

Hello Students & Aspirants,
We are a team of aptitude trainers who believe that this new blog/website, created for various aptitude tests like Banking, Railways, SSC, Engineering & Management studies and many more, will work wonders. We have been able to put a lot of content here to start with and more materials are deluging this place with the best questions to practise for one and all.

What is the level of questions:
Every level has been tried to be introduced- simple problems that lay the foundation to tougher ones solving which gives you perspectives to solve intelligently in the real exam conditions.

Are there tests to take?
Definitely, we have formulated tests to help you gauge your preparation and also get the results and recommended solutions. We can tell you that as you work out the various problems and inculcate a habit of thinking better methods to solve, you can be far superior in terms of finding out “the best method” that works for you!

Is there a way to give feedback?
Surely yes!!! How are we to improve if we don’t take your feedback? đŸ™‚ Please use the appropriate forum to raise your concerns and we assure you that we will go beyond to help you with whatever we can!

#### Some Applications of Trigonometry – Class X – Part 4 | Exercise 9.1 Q9-10 Solved

Watch the fourth video session on "Some Applications of Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/fBewCm4BtEo Some Applications of Trigonometry - NCERT Class X - Part 4 1. Astronomers used Trigonometry to ...

#### Some Applications of Trigonometry – Class X – Part 3 | Exercise 9.1 Q7-8 Solved

Watch the third video session on "Some Applications of Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/A5y-vdYYcPw Some Applications of Trigonometry - NCERT Class X - Part 3 1. Astronomers used Trigonometry to ...

#### Some Applications of Trigonometry – Class X – Part 2 | Exercise 9.1 Q4-6 Solved

Watch the second video session on "Some Applications of Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/eyc7HMR-W5k Some Applications of Trigonometry - NCERT Class X - Part 2 1. Astronomers used Trigonometry to ...

#### Some Applications of Trigonometry – Class X – Part 1 | Exercise 9.1 Q1-3 Solved

Watch the first video session on "Some Applications of Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/rZ_ER6WzqZU Some Applications of Trigonometry - NCERT Class X - Part 1 1. Astronomers used Trigonometry to ...

#### Some Applications Of Trigonometry | Heights and Distances | Concept of Angle of Elevation

Watch the video session on Concept of "Angle of Elevation" for Class Xth - concepts and solved questions https://youtu.be/wCNL7Qgqsfo Some Applications Of Trigonometry | Heights and Distances | Concept of Angle of Elevation 1. Astronomers ...

#### Introduction to Trigonometry – Class X – Part 9 | Exercise 8.4 Q5 (iv) – 5 (x) Solved

Watch the ninth video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/mEzukNR8-KA Introduction To Trigonometry - Class X - Part 9 1. Trigonometric identities that are in syllabus (class ...

#### Introduction to Trigonometry – Class X – Part 8 | Exercise 8.4 Q4- 5 (iii) Solved

Watch the eight video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/R6dYhAH62kE Introduction To Trigonometry - Class X - Part 8 1. Trigonometric identities that are in syllabus (class ...

#### Introduction to Trigonometry – Class X – Part 7 | Exercise 8.4 Q1-3 Solved

Watch the seventh video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/3AN9ZIdk2PQ Introduction To Trigonometry - Class X - Part 7 1. Trigonometric identities that are in syllabus (class ...

#### Introduction to Trigonometry – Class X – Part 6 | Exercise 8.3 Q1-7 Solved

Watch the sixth video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/b8Lx5IxsXMM Introduction To Trigonometry - Class X - Part 6 1. How to solve trigonometric ratios for complementary ...

#### Introduction to Trigonometry – Class X – Part 5 | Exercise 8.2 Q2-4 Solved

Watch the fifth video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/7QIua_N1NFM Introduction To Trigonometry - Class X - Part 5 1. How to remember trigonometric ratios for specific ...

#### Introduction To Trigonometry – Class X – Part 4 | Exercise 8.2 Q1 Solved

Watch the fourth video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/7oIWyh-18b8 Introduction To Trigonometry - Class X - Part 4 1. How to remember trigonometric ratios for specific ...

#### Introduction To Trigonometry – Class X – Part 3 | Exercise 8.1 Q10-11 Solved

Watch the third video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/hfAoVWo5b1c Introduction To Trigonometry - Class X - Part 3 1. The word â€˜trigonometryâ€™ is derived from the ...

#### Introduction To Trigonometry – Class X – Part 2 | Exercise 8.1 Q5-9 Solved

Watch the second video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/EG2cAA9_3uI Introduction To Trigonometry - Class X - Part 2 1. The word â€˜trigonometryâ€™ is derived from the ...

#### Introduction To Trigonometry – Class X – Part 1 | Exercise 8.1 Q1-4 Solved

Watch the first video session on "Introduction To Trigonometry" for Class Xth - concepts and solved questions https://youtu.be/ZYALT2hUiSE Introduction To Trigonometry - Class X - Part 1 1. The word â€˜trigonometryâ€™ is derived from the ...

#### Quadratic Equations – Class X – Part 7 | Exercise 4.4 Q1-5 Solved

Watch the seventh video session on "Quadratic Equations" for Class Xth - concepts and solved questions https://youtu.be/mJMyI3ptT80 Quadratic Equations - Class X - Part 7 When we equate quadratic polynomial of the form ax2 + ...