Introduction to Trigonometry

# Introduction to Trigonometry Video Lecture | Mathematics (Maths) Class 10

## Mathematics (Maths) Class 10

116 videos|420 docs|77 tests

## FAQs on Introduction to Trigonometry Video Lecture - Mathematics (Maths) Class 10

 1. What are the basic trigonometric functions?
Ans. The basic trigonometric functions are sine, cosine, and tangent, denoted as sin, cos, and tan respectively. These functions relate the angles of a triangle to the lengths of its sides.
 2. How do you find the sine, cosine, and tangent of an angle in a right triangle?
Ans. To find the sine, cosine, and tangent of an angle in a right triangle, you can use the ratios of the triangle's sides. For example, sine is calculated as the length of the side opposite the angle divided by the hypotenuse.
 3. What is the unit circle and how is it used in trigonometry?
Ans. The unit circle is a circle with a radius of 1 centered at the origin on the coordinate plane. It is used in trigonometry to define the values of trigonometric functions for any angle, not just those in right triangles.
 4. How can trigonometry be used in real-life applications?
Ans. Trigonometry is used in various real-life applications such as architecture, engineering, physics, and astronomy. It helps in measuring distances, heights, angles, and more in practical scenarios.
 5. What is the Pythagorean identity in trigonometry?
Ans. The Pythagorean identity in trigonometry is sin^2(x) + cos^2(x) = 1, which relates the sine and cosine functions of an angle in terms of each other. This identity is derived from the Pythagorean theorem.

## Mathematics (Maths) Class 10

116 videos|420 docs|77 tests

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