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Trignometric identities

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Trignometric identities

Posted by Kunal Singh 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 1 month ago

For the right triangle ABC, let 0°≤ A ≤ 90°

1) cos² A + sin² A = 1.

2) cos² A =1 - sin² A.

3) sin² A =1 - cos² A.

4) sec² A - tan² A = 1.

5) 1 + tan² A = sec² A.

6) tan² A = sec² A – 1.

7) cosec² A - cot² A = 1.

8) cot² A + 1 = cosec² A.

9) cot² A = cosec² A – 1 .

10) sec A - tan A = 1/ sec A + tan A

11) cosec A - cot A = 1/ cosec A + cot A

1Thank You

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CBSE > Class 10 > Mathematics