AonZ
  • AonZ
Hard trig question. Please Please help! if θ is an acute angle and cos θ = 4/5 . use the result cos^2 θ = (1 + cos2x) / 2 . Find the exact value of cos (θ/2)
Mathematics
schrodinger
  • schrodinger
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

AonZ
  • AonZ
@phi @primeralph @ganeshie8
primeralph
  • primeralph
|dw:1368828851468:dw|
primeralph
  • primeralph
|dw:1368828916634:dw|

Looking for something else?

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

More answers

primeralph
  • primeralph
|dw:1368828952238:dw|
AonZ
  • AonZ
isnt cosA = 4/5? not cos2A?
primeralph
  • primeralph
no, I changed theta = 2A, so costheta = cos2A
AonZ
  • AonZ
oh :P didnt know you could do that! Thanks so much!!!
primeralph
  • primeralph
you can.

Looking for something else?

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