Asked by Fading
                Find the values of the inverse function in radians. 
sin^-1(0.65)
a. 0.71+2pi n and -0.71+2pi n
b. 0.71+2pi n and -3.85+2pi n
c. 0.86+2pi n and -0.86 +2pi n
d. -0.61+2pi n and 2.54+2pi n
2. tan^-1(0.09)
a.-0.09+2pi n
b. no such angle exists
c.-1.48+ pi n
d. -0.09+ pi n
I've been stuck on these two for such a long time. I think the first one is a. I don't know about the second one. I feel like it's b, if not, then either a or d... I can't seem to figure it out anymore
            
        sin^-1(0.65)
a. 0.71+2pi n and -0.71+2pi n
b. 0.71+2pi n and -3.85+2pi n
c. 0.86+2pi n and -0.86 +2pi n
d. -0.61+2pi n and 2.54+2pi n
2. tan^-1(0.09)
a.-0.09+2pi n
b. no such angle exists
c.-1.48+ pi n
d. -0.09+ pi n
I've been stuck on these two for such a long time. I think the first one is a. I don't know about the second one. I feel like it's b, if not, then either a or d... I can't seem to figure it out anymore
Answers
                    Answered by
            Fading
            
    Nevermind, the answers were b and d:/
    
                    Answered by
            Reiny
            
    #1
the solutions from 0 to 2π
would be .71 and π - .71
or .71 and 2.43
so I was expecting to see:
.71 + 2π , 2.43 + 2π
I don't see that, but when n = 0 , the first part of the solution should work
e.g. sin(-.71) ≠ .65 , so not A
sin *.86) ≠ .65, not C
sin (-.61) ≠ .65, not D
that leaves B.
notice when n = -1
2.43-2π = -3.85 <--- a 2nd quadrant angle
the correct choice is B
What a poor way to state the answer!!
#2
tan^-1 (.09) = .089 or π + .089
= .089 or 3.23
So my solution would be
<b>.089 + π, 3.23 + π</b>
again, this is not shown, so are they being sneaky again??
clearly B is wrong, since I found answers
tan(-.09) = -.09 , so NOT A
tan(-1.48) = -10.98 , so NOT C
 
bogus question!
 
    
the solutions from 0 to 2π
would be .71 and π - .71
or .71 and 2.43
so I was expecting to see:
.71 + 2π , 2.43 + 2π
I don't see that, but when n = 0 , the first part of the solution should work
e.g. sin(-.71) ≠ .65 , so not A
sin *.86) ≠ .65, not C
sin (-.61) ≠ .65, not D
that leaves B.
notice when n = -1
2.43-2π = -3.85 <--- a 2nd quadrant angle
the correct choice is B
What a poor way to state the answer!!
#2
tan^-1 (.09) = .089 or π + .089
= .089 or 3.23
So my solution would be
<b>.089 + π, 3.23 + π</b>
again, this is not shown, so are they being sneaky again??
clearly B is wrong, since I found answers
tan(-.09) = -.09 , so NOT A
tan(-1.48) = -10.98 , so NOT C
bogus question!
                    Answered by
            Reiny
            
    If D is the choice , then when n = 0, we get
tan(-.09) = -.09 which is NOT the given
D is wrong
    
tan(-.09) = -.09 which is NOT the given
D is wrong
                    Answered by
            Shane
            
    2. tan^-1(-0.09) 
the answer would be D believe it or not -0.09+ pi(n)
the first question is correct however the answer would be B
0.71+2 pi (n) and -3.85+ 2 pi (n)
apologies for the confusing writing I don’t have the pi symbol on hand.
(the answers are verified and correct)
    
the answer would be D believe it or not -0.09+ pi(n)
the first question is correct however the answer would be B
0.71+2 pi (n) and -3.85+ 2 pi (n)
apologies for the confusing writing I don’t have the pi symbol on hand.
(the answers are verified and correct)
                    Answered by
            angry man
            
    b
a
b
c
b
c
a
a
a
b
a
    
a
b
c
b
c
a
a
a
b
a
                    Answered by
            👏🏼
            
    100 
    
                    Answered by
            Danny
            
    May 2021 100%
    
                    Answered by
            zoot
            
    unit 7 lesson 9  quiz 1,  angry man 100% correct for Algebra 1 connexus
    
                    Answered by
            minesliikko
            
    Still correct in 2022
    
                    Answered by
            AyeeL
            
    Angry man.. Buddy.... U r a god send <3
ILY
    
ILY
                    Answered by
            stan tomorrow x together
            
    angry man is still correct!! thank you so much!!
    
                    Answered by
            IhateChem
            
    100% (Angry Man) In May 2022
    
                    Answered by
            Green 
            
    Still good
    
                    Answered by
            scoop dog
            
    still good
    
                    Answered by
            aith!
            
    still good!!! you're a lifesaver :]
    
                    Answered by
            AETHER
            
    GOOD!
                    Answered by
            かまりん*
            
    Oh my god 12 minutes ago
    
                    Answered by
            m o s s 
            
    solving trigonometric equations using inverses quiz <3
1. b) -0.36
2. a) -2
3. b) 1
4. c) tan^2 theta = sin^2...
5. b) 60°
6. c) 60°
7. a) 0.71
8. a) -0.09
9. a) 2pi/3, 4pi/3
10. b) pi/4, 5pi/4
11 a) cos theta = 16/20
please use these to check your answers (dont cheat lmao)
    
1. b) -0.36
2. a) -2
3. b) 1
4. c) tan^2 theta = sin^2...
5. b) 60°
6. c) 60°
7. a) 0.71
8. a) -0.09
9. a) 2pi/3, 4pi/3
10. b) pi/4, 5pi/4
11 a) cos theta = 16/20
please use these to check your answers (dont cheat lmao)
                    Answered by
            here you go <3
            
    Moss is correct
    
                    Answered by
            LOSER
            
    Moss is correct for me toooooo
    
                    Answered by
            Og Steve 
            
    Thanks angryman and moss
    
                    Answered by
            Steve-o
            
    Is this the new jiskha?
    
                                                    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.