Question

answer my question please ​

Answer 1

Answer:

Given A,B are supplementary angles

⟹A+B=180

∘

⟹B=180

∘

−A

cos

2

A+sin

2

B=cos

2

A+sin

2

(180

∘

−A)

=cos

2

A+sin

2

A

=1

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Answer 2

Answer:

this is an identity ..

• where sin²o + cos²o = 1..

Step-by-step explanation:

hope this will help u..✌