Question

trigonometric identities ​

Answer 1

Answer:

trigonometric identities are given as follows:

1. for sin degree its 0
2. for cos 0 degree its 1
3. for tan 0 degree its 0
4. for cot 0 degree its not defined
5. for sec 0 degree its 1
6. for cosec 0 degree its not defined

Answer 2

Hey there!

Trigonometrical Identities:

♦ Reciprocal Identities:

• sin Ф = 1 / cosec Ф

• cos Ф = 1 / sec Ф

• tan Ф = 1 / cot Ф

♦ Square Identities  [Pythagorean Identities]:

• sin² + cos² = 1

• sec² Ф = 1 + tan² Ф

• cosec² Ф = 1 + cot² Ф

♦ Quotient Identities:

• tan Ф = sin Ф / cos Ф

• cot Ф = cos Ф / sin Ф