sec(theta)/1+tan^2(theta)

Question

i need this so i can finish my math work that is all due by tomorrow i will repay 

Answer 1

I assume you want to simplify the expression.  I also assume you meant to say

 

secθ / (1 + tan²θ) = ?  [Please group things with parentheses.]

 

secθ / (1 + tan²θ) = (1/cosθ) / (1 + tan²θ) = 1 / (cosθ + sin²θ/cosθ)

 

= cosθ / (cos²θ + sin²θ) = cosθ/1 = cosθ