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0/1 polnts Previous Answens SPrCalct 7.T.017.Solve the trigonometric equation in the Interval sin(20) cos(0)27) . Give the exact value_ possible; otherwise, round Y...

Question

0/1 polnts Previous Answens SPrCalct 7.T.017.Solve the trigonometric equation in the Interval sin(20) cos(0)27) . Give the exact value_ possible; otherwise, round Your answer bwo de2 + 1n, 6 2tn,ZanSubmit AnswerSavo Progresspehte Pmvious Answvers SPreCak? 2.T.014.

0/1 polnts Previous Answens SPrCalct 7.T.017. Solve the trigonometric equation in the Interval sin(20) cos(0) 27) . Give the exact value_ possible; otherwise, round Your answer bwo de 2 + 1n, 6 2tn, Zan Submit Answer Savo Progress pehte Pmvious Answvers SPreCak? 2.T.014.



Answers

In Exercises $63-84,$ use an identity to solve each equation on the interval $[0,2 \pi) .$
$$
2 \cos ^{2} x-\sin x-1=0
$$

So the first time we were trying to break because I square in Jude Uh, one minus signs square. Thanks. And bless I X minus one equals Jizo. Then we want to buy that you inside and we should get the Jew Minister. Jews sign square. Thanks. Site X minus one equals Juzo Then we've got a monster size square. Thanks. Yes, Sorry. Thanks On then plus one equal to zero. And then we can use a substitution where we believe. Why, Nico, just sigh, ex. And now this a question here will becomes Minister y Square. That's why this one he coaches Oh, and then we can use a jigen a quadratic formula to find a wine one on Jui Coach, You must be able to anyone But you are a man is being what you let us be Bless a man a square It'll be square When it's far I see anybody but you I So will you go Jew minus one Bless him on a square root and, uh, one and ah, last night And I eat here Remember to hang before one is far, so we gotta go. June minus one lesson minus treat Even my money's far. So it was Ego Ju. Why equally do. And we will use the miners. And then we got one. We used the blessed tree a Gundam mine as 1/2. So it doesn't mean that so we shouldn't have Sorry about that. Doesn't mean that we shouldn't have exit Good. You one on the side exit Echo humanist 1/2 prison mused that so excellently. One when x echo Jew by Jew. So echo echo Germans on half when x Nico ju Uh We see, then would be one, Huh? So it would be buying tips. So very fine. Ah, seven Buyout of six. Ah, 11 by top six. So we have to She listens here 12 and three.

Unstoppable problem. 60. This one sees that Clark Tita plus to cause Akita. So as of no school trigonometry functions. So our aim should be different word this just into one. So that status to cause it to get over to the right. So we have carted as three minus two consecutive that square both sides where we didn't dark. We have courts quite itta on here we have three minus two Kazakh cheetah will square. Let's expand this whole square. So we have a trees where plus course, you this will lead to cause empty devils Where? So we have to cause a dictator who square minus 23 because it it's a stew over here, right? And the left seders court square feet up. No, we know one identity card, one plus card square. Tito's actually cause it's where so lets you start and replace this by cost six square treat a minus and the right Silas nine plus full Cosic Square Tito minus swell concept. Now this whole equation is in terms off Kozik. So let's replace causing treated by why So this gives us who I swear. When this one is, he will do nine plus four y squared minus 12. I Let's bring this over to the left. So we have four y square, minus 12 I plus nine acids and the says minus by a square. And this is plus one is equal. Issue four minus 13 So we have three y squared. Here we have my Mr Why here We have to stand as equals zero. All right, so now I think we can use quadratic formula. So we have I as minus off minus trail Bless menace squared off. Ministry squared minus 43 Then more two times tree. So this is well plus minus where you go in 1 40 for minus 1 20/6 But you can for the reader than as 12 plus minus went off 24/6. So from here, we actually have two equations. Oneness. Isaac would do well minus square root of 24. Almost six. Which is nothing but wise. Cosic Tita. So this is Cosic. Peter is 12 minus squared. 24 or six. This means that cause it is nothing but what I was saying so this can be needed on us. Scientist does equal to and let's take reciprocal of this. So we have 6/12 minus square root of 24. From here we get to well use of treating. One has taken signing wall. So we get 57.7 degrees and another value of Peter will be 1 80 minutes. This value. So we have 1 18 minus 57.7 which is 1 20 do 23. So we have one 1 22 point he from here. So there's not a dual use on the left. Let's talk about the right one. So we have right on a swell plus the square root of 24 or six. So we have VIAS. Cosic teeters. So this is conceptually terrible. We will do 12 plus square root off 24. I was six. Causing is nothing where one was signed. So we have sign as we take reciprocal notice. So we have six over to help us square root of 24. From here we again your to lose one as signing more solders which is 20.8 degrees. And in another oneness when a demon is the spot. So we have 1 18 minus 20.8, which is 1 59 point. But we're not done here. Remember, by solving when we did square root states just in the step. So squaring actually gives us some extraneous troops. What means is we get some rules which are not actually the one which satisfies the original question. So feel check will come to know that this on this satisfies the question. Vile, if you will put these two angles, they won't really satisfy door original equation, which is this. It means that those two are extraneous rules and should be rejected. So an actual we have two solutions 57.7 degrees on 1 59.2, please.

A room number seven So this one stays there or sex plus five or six fight mode states. So we have Foucault's X equals one. Let's do right by you both sides So we have costs excess on from here The solution The solution, of course, was working which is by a tree. This is a load because we have to find a solution within zero and by on another solution will be group by minus five minutes by the tree bitches five fire poultry Some of these other in solutions for this situation. This is for three hours, so these two other require solutions.

Hey, it's clear. So when you read here, Here. Yes. Six co sign square minus three equals zero. This becomes co signed square. He calls one have in the co sign of actual equals positive negative one over square root of two. Then we know access equal to plus or minus pi over four plus or minus three pi over four Lester minus five pi over four plus or minus seven pile before.


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