How do you simplify # sin²x + tan²x + cos²x#?
1 Answer
Jul 4, 2016
Explanation:
Using the following identities.
#color(orange)"Reminders"#
#color(red)(|bar(ul(color(white)(a/a)color(black)(sin^2x+cos^2x=1)color(white)(a/a)|)))#
#color(red)(|bar(ul(color(white)(a/a)color(black)(1+tan^2x=sec^2x)color(white)(a/a)|)))#
#rArrsin^2x+cos^2x+tan^2x=1+tan^2x=sec^2x#
