Dear Students,

Today, almost 90% of our students have joined different Academies for learning purpose. Some of them hired tutors and are charging high fee. We realize the factor and are very well aware that it is very much difficult for the parents to afford the high fee of different Academies / Tutors. We also concluded that the Academies are not providing good teaching services to the students but charging high fee from students. After realizing the factors we have uploaded the videos prepared by SABAQ foundation on our website which will really beneficial for the students as well as the people who are serving as teachers of different subjects in different institutions.

From this section you can download / view Video Lectures on Mathematics **Class 11th / F.Sc / ICS Part-I** for free. These Videos for **F.Sc** students have been prepared by SABAK Foundation for the ease of students as per new and updated syllabus/course prescribed by Federal Board of Intermediate & Secondary Education (FBISE), Islamabad – Pakistan and other BISE(s)/Boards of Pakistan. We are fully hopeful that after after watching/viewing these Video Lectures you will score 90% plus marks in your exams as they have been prepared in a very simple, easy, brief and in simple and lucid language to understand. The purpose of sharing these videos is to promote education in Pakistan and to help those students who really want to learn something. These videos are enough for learning purpose, and after watching these video lectures you will come to know that you are no more in need of any kind of tuition or Academy.

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**Please select the desired subject to download / watch the video from the links given below**:

**Chapter 12: Application of Trigonometry (31 videos)**

**12.1: Introduction**

**12.2: Tables of Trigonometric Ratios**

**12.3: Solution of Right Triangles**

**when one Side & Angle of Elevation are Given****when One Side & Angle of Depression are Given****when Hypotenuse & Angle of Elevation are Given****when Given Sides-Angle of Elevation-Depression**

**12.4: (a)-Heights and Distances**

**12.5: (b)-Angles of Elevation and Depression**

**12.6: Engineering and Heights and Distances**

**Concept of Oblique Triangles****The Sine Rule****The Cosine Rule****More on The Cosine Rule****The Law of Tangents****More on The Law of Tangents****Half Angle Formulas****The Cosine of Half the Angle in Terms of the Sides****The Tangents of Half the Angle in Terms of the Sides**

**12.7: Oblique Triangles**

**When Measures of One Side and Two Angles are Given****When Measures of Two Side and Their Included Angles are Given****When Measures of Three Sides are Given**

**12.8: Solution of Oblique Triangles**

**Area of Triangle****Area of Triangle by Measuring One Side and Two Angle****Area of Triangle by Measuring Three Sides**

**12.9: Area of Triangle**

**Relation Among Radius, Circum-Angle & Chord of a Circum-Circle****More on Relation Among Radius, Circum-Angle & Chord of a Circum-Circle****Relation Among In-Radius, Perimeter & Area of Triangle****Relation Among ex-Radius, Perimeter & Area of Triangle**