A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
7 sin2x  14 sin x + 2 = 5
find all solutions
anonymous
 4 years ago
7 sin2x  14 sin x + 2 = 5 find all solutions

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0thats not even english to me.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.07sin²(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°

hartnn
 4 years ago
Best ResponseYou've already chosen the best response.0is it sin2x or \(sin^2 x\) ??

hartnn
 4 years ago
Best ResponseYou've already chosen the best response.0then sin x=1 is correct. but do u need solutions in the range of 0 to 180 only or all solutions ?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0no idea. the question say find all solutions to the equation

hartnn
 4 years ago
Best ResponseYou've already chosen the best response.0because sin (360+90) also =1

hartnn
 4 years ago
Best ResponseYou've already chosen the best response.0yes, all solutions means u don't have only 1 solution, u have infinite

hartnn
 4 years ago
Best ResponseYou've already chosen the best response.0sin(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,....`

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yeah. is that the answer

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you sure. i can wrrite that & ill be correct?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0if i wrote exactly what you just put down ill be correct?

hartnn
 4 years ago
Best ResponseYou've already chosen the best response.0idk 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
 4 years ago
Best ResponseYou've already chosen the best response.0Whats The Range ? I think It Would Be 0 to 180
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.