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Question
tanx(sinx+cotxcosx) = secx
tan(x)(sin(x) + cot(x)cos(x)) = sec(x)
tan(x)(sin(x) + (cos(x)/sin(x))cos(x)) = sec(x)
tan(x)(sin(x) + (cos(x)^2/sin(x)) = sec(x)
tan(x)((sin(x)^2 + cos(x)^2)/(sin(x))) = sec(x)
tan(x)(1/sin(x)) = sec(x)
(sin(x)/cos(x))(1/sin(x)) = sec(x)
1/cos(x) = sec(x)
sec(x) = sec(x)
more info found at http://www.math.com/tables/trig/identities.htm
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Answers by Expert:
Sherman D.
Expertise
I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.
Experience
Mathematics, Recipes, History, and Games.
Education/Credentials
High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.
Awards and Honors
Principle's list and A and B honor roll in high school only.
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