Fundamental Trigonometric Identities
Lesson#5
• 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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