Help proving please?
Not even sure where to start here... This book went from 0-1000 mph in a heartbeat.
I need to prove:
(cos x + sin x)^2 - sin (2x) = 1
Not even sure where to start here... This book went from 0-1000 mph in a heartbeat.
I need to prove:
(cos x + sin x)^2 - sin (2x) = 1
1 Answer
May 6, 2018
Refer explanation.
Explanation:
To prove
First, remove the brackets.
Apply
Apply