Question

prove sin^2A + cos^2A = 1

Answer 1

Answer:

Step-by-step explanation:

A=45

Answer 2

Answer:

➡ sin A = P/H and cos A = B/H

Putting these value we get,

➡ (P/H) ^2 + (B/H) ^2

➡ P^2 / H^2 + B^2 / H^2

➡ P^2 + B^2 / H^2

➡ H^2/H^2 b'coz P^2 + B^2 = H^2

➡ 1

Hope it helps..