AJ L. answered • 07/19/23
Supportive K-12 + College Math Tutor
Since θ is in Quadrant IV, then cosθ>0 and sinθ<0, making tanθ<0
Because cosθ = adjacent/hypotenuse = 8/9, then:
tanθ = opposite/adjacent
= -√(92-82)/8
= -√(81-64)/8
= -√(17)/8
Hope this helped!
AJ L.
To get the opposite side, you’d use the Pythagorean Theorem. a=sqrt(c^2-b^2) where c is the hypotenuse and b is the adjacent side to get the opposite side a.07/19/23
Kennedy H.
Where did the denominator come from07/19/23
AJ L.
The adjacent side is 8 from the cosine formula07/19/23
AJ L.
If you need more assistance with this topic, I suggest you schedule an appointment with me!07/19/23
Kennedy H.
Are you available saturday at 11:15 this weekend ?07/20/23
AJ L.
I sure am! You can book an appointment through my profile.07/20/23
AJ L.
Oh which time zone btw?07/20/23
Susan D.
Hi Kennedy, Ask an Expert is a platform for academic questions. If you need any assistance connecting with a tutor, please visit our Help Center at https://support.wyzant.com/hc/en-us, and ask your question. Or let our Customer Support department help you! Contact us at [email protected] and we will follow up as soon as we can.07/21/23
Kennedy H.
What was the formula07/19/23