Question

(sin A +cos A)² - 2 sin A cos A is equal to​

Answer 1

Answer:

1

Step-by-step explanation:

(sin a + cos a)^2 - 2 sin a . cos a= sin^2a + cos^2a + 2 sina.cosa - 2 sin a. cos a

= sin^2 a + cos^2 a

= 1