Pythagorean Identities

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sin²A + cos²A =

1
sin²A - 1 =

-cos²A
1 - cos²A =

sin²A
1 - sin²A =

cos²A
cos²A - 1 =

-sin²A
tan²A + 1 =

sec²A
tan²A - sec²A =

-1
1 - sec²A =

-tan²A
sec²A - 1 =

tan²A
sec²A - tan²A =

1
1 + cot²A =

csc²A
1 - csc²A =

-cot²A
cot²A - csc²A =

-1
csc²A - cot²A =

1
csc²A - 1 =

cot²A
What are the 3 basic pythagorean identities?
- sin²A + cos²A = 1
- tan²A + 1 = sec²A
- 1 + cot²A = csc²A
What are the simple relations?
- sin + cos = 1
- tan + 1 = sec
- 1 + cot = csc

Author

41852

Card Set

Pythagorean Identities

Description

Identities that can be derived from the sides of a triangle.

Updated

2010-10-13T06:17:31Z

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