# Fundamental Trigonometric Identities

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• Fundamental Trigonometric Identities

Math.Ex.9.2, Part5(9.2)

For any real number , we shall derive the following fundamental trigonometric identities:

1) sin(−)=−sin

• Points to Remember:

1) sin is coordinate of point and cosec is reciprocal of coordinate.

2) cos is coordinate of point and sec is reciprocal of coordinate.

Chapter No. 9

Fundamentals of Trigonometry

Exercise No. 9.2

mathematics

part 1

• Fundamental Trigonometric Identities

Math.Ex.9.2, Part5(9.2)

For any real number , we shall derive the following fundamental trigonometric identities:

1) sin(−)=−sin

• Points to Remember:

1) sin is coordinate of point and cosec is reciprocal of coordinate.

2) cos is coordinate of point and sec is reciprocal of coordinate.

Chapter No. 9

Fundamentals of Trigonometry

Exercise No. 9.2

mathematics

part 1

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