itsonlycdeee
  • itsonlycdeee
Prove the identity. sec θ − cos(−θ) = sin^2θ/cosθ I'm trying to transform the left side to the right side & so far I got: 1/ cosθ - cos(-θ) = 1/cosθ - cosθ =
Mathematics
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

cwrw238
  • cwrw238
sin^2θ/cosθ = (1 - cos^2θ)/cosθ = 1 / cosθ - cos θ = secθ - cos θ
hartnn
  • hartnn
if you want to continue from where you have left, try to make a common denominator \(\dfrac{1}{\cos \theta}- \cos \theta \times \dfrac{\cos \theta}{\cos \theta}=\dfrac{1-\cos^2 \theta}{\cos \theta}\) and lastly the use of \(\sin^2 x+\cos^2 x=1\) will lead you to right side :)
itsonlycdeee
  • itsonlycdeee
@hartnm okay, that's what I'm attempting right now.

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

hartnn
  • hartnn
good, did you get what i did ? if yes, can you continue ?
itsonlycdeee
  • itsonlycdeee
Yes, it becomes sin^2θ/ cosθ. Thank you so much!
hartnn
  • hartnn
you're most welcome ^_^
cwrw238
  • cwrw238
with these problems its often easier to start with the more complicated side as i did here
itsonlycdeee
  • itsonlycdeee
@cwrw238 yeah, it'd take a few steps longer to go from the simpler side to the difficult one.

Looking for something else?

Not the answer you are looking for? Search for more explanations.