Prove that 2sin(a)+sec(a)1+tan(a) = 1+tan(a)sec(a)
My attempt using the LHS
2sin(a)+sec(a)1+tan(a)
2sin(a)+1cos(a)1+sin(a)cos(a)
2sin(a)+1cosacos(a)+sin(a)cos(a)
2sin(a)+1cosa∗cos(a)cos(a)+sin(a)
2sin(a)+1cos(a)+sin(a)
Now I am stuck...
Answer
Hint: What does (cosa+sina)2 simplify to?
No comments:
Post a Comment