Asked by bob
for sin2x+cosx=0, use double-angle or half-angle formula to simplify the equation and then find all solutions of the equation in the interval (0,2Pie)
Answers
Answered by
Writeacher
Please type your <u>subject</u> in the <b>School Subject</b> box. Any other words, <u>including obscure abbreviations</u>, are likely to delay responses from a teacher who knows that subject well.
Answered by
bobpursley
sin2x= 2sinxcosx
cosx(2sinx+1)=0
cosx=0 so x=0, PI, 2PI
sinx=-1/2, so x=3PI/2 check that.
cosx(2sinx+1)=0
cosx=0 so x=0, PI, 2PI
sinx=-1/2, so x=3PI/2 check that.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.