# 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.

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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.

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#### Math 1st Pre-Board Class Xth Question Paper Kolkata Region (2018-19)

Math 1st Pre-Board Class Xth Question Paper Kolkata Region (2018-19) ...

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#### Pre- Board Examintion (2018-19) – Class Xth Mthematics – Hyderabad Region

Pre-Board-1 Examination (2018-19) ...

#### 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 Some Applications of Trigonometry - NCERT Class X - Part 4 1. Astronomers used Trigonometry to calculate ...

#### 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 Some Applications of Trigonometry - NCERT Class X - Part 3 1. Astronomers used Trigonometry to calculate ...

#### 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 Some Applications of Trigonometry - NCERT Class X - Part 2 1. Astronomers used Trigonometry to calculate ...

#### 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 Some Applications of Trigonometry - NCERT Class X - Part 1 1. Astronomers used Trigonometry to calculate ...

#### 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 Some Applications Of Trigonometry | Heights and Distances | Concept of Angle of Elevation 1. Astronomers used ...

#### 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 Introduction To Trigonometry - Class X - Part 9 1. Trigonometric identities that are in syllabus (class 10, ...

#### 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 Introduction To Trigonometry - Class X - Part 8 1. Trigonometric identities that are in syllabus (class 10, ...

#### 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 Introduction To Trigonometry - Class X - Part 7 1. Trigonometric identities that are in syllabus (class 10, ...

#### 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 Introduction To Trigonometry - Class X - Part 6 1. How to solve trigonometric ratios for complementary angles? ...

#### 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 Introduction To Trigonometry - Class X - Part 5 1. How to remember trigonometric ratios for specific angles: ...

#### 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 Introduction To Trigonometry - Class X - Part 4 1. How to remember trigonometric ratios for specific angles: ...

#### 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 Introduction To Trigonometry - Class X - Part 3 1. The word â€˜trigonometryâ€™ is derived from the Greek ...