anonymous
  • anonymous
7 sin2x - 14 sin x + 2 = -5 find all solutions
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
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.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
cosx=-1
anonymous
  • anonymous
thats not even english to me.
anonymous
  • anonymous
ok

Looking for something else?

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

More answers

hba
  • hba
@hartnn
anonymous
  • anonymous
7sin²(x) - 14sin(x) + 2 = -5 7sin²(x) - 14sin(x) + 7 = 0 7(sin²(x) - 2sin(x) + 1) = 0 sin²(x) - 2sin(x) + 1 = 0 (sin(x) - 1)² = 0 sin(x) - 1 = 0 sin(x) = 1 x = 90°
anonymous
  • anonymous
would it be that?
hartnn
  • hartnn
is it sin2x or \(sin^2 x\) ??
anonymous
  • anonymous
sin squared x
hartnn
  • hartnn
then sin x=1 is correct. but do u need solutions in the range of 0 to 180 only or all solutions ?
anonymous
  • anonymous
no idea. the question say find all solutions to the equation
hartnn
  • hartnn
because sin (360+90) also =1
hartnn
  • hartnn
yes, all solutions means u don't have only 1 solution, u have infinite
anonymous
  • anonymous
alright
hartnn
  • hartnn
sin(x)=1 sin x = sin (90+360n) (n=1,2,3,....) so x= 90+360n are all the values of x with n=1,2,3,....`
hartnn
  • hartnn
got that ^ ?
anonymous
  • anonymous
yeah. is that the answer
hartnn
  • hartnn
yes.
anonymous
  • anonymous
you sure. i can wrrite that & ill be correct?
anonymous
  • anonymous
if i wrote exactly what you just put down ill be correct?
hartnn
  • hartnn
idk how your teacher / system demands the answer, but any of these 2 answers are complete and correct: 1) x= 90+360n , n=1,2,3,..... 2) x=90,450,810,..
hba
  • hba
Whats The Range ? I think It Would Be 0 to 180
anonymous
  • anonymous
thanks

Looking for something else?

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