Notes Of Some Applications Of Trigonometry For Class 10 Download PDF

Chapter 9 : Some Applications of Trigonometry

Suppose we are viewing an object standing on the ground. Clearly, the line of sight ( or line ofvision) to the object is the line from our eyes to the object, we are viewing. (A) Angle of elevation :

Let `0â€² be the eye of observer and Q be an object and OX is a horizontal line then âˆ XOQ is called the angle of elevation and generally it is denoted by

Theeta or Phie i.e â€˜0â€™ or Ï†.

(b) Angle of Depression: â€˜Pâ€™ be the object lies below the horizontal

line OX, then âˆ XOP is called the angle of depression and is denoted by â€˜0â€™ or `Ï†â€™

**NOTE:**- For solving the height and distances problem,draw figure, and see the relation between known to unknown.

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- Chapter 7 : Coordinate Geometry
- Chapter 1 Real Numbers
- Chapter 2 Polynomials
- Chapter 3: Pair of Linear Equations in Two Variables
- Chapter 6 Lines and Angles
- hapter 14 : STATISTICS
- Chapter 6 : Triangles
- Chapter 8 : Introduction to trigonometry
- Chapter 4: Quadratic Equations
- Chapter 5 : Arithmetic Progressions
- Chapter 9 : Some Applications of Trigonometry
- Chapter 10 : Circles
- Chapter 11 : Constructions
- Chapter 12 : Area Related to Circles
- Chapter 13 : Surface Areas and Volumes
- Chapter 15 : Probability

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