Questions tagged 'Trigonometry'
44 questions
graph x = 7 sin t + sin 7ty = 7 cos t + cos 7t?
How can I graph the equations ( x = 7 \sin(t) + \sin(7t) ) and ( y = 7 \cos(t) + \cos(7t) )? What steps should I follow to ensure an accurate representation of this graph?
Question on Trigonometry Angles ?
Alan observes a tree located 100 meters away at a bearing of 150° and at an elevation of 10°. Beta is situated at a bearing of 80° from Alan and a bearing of 33° from the tree, viewing the same tree a...
Algebra/ trig help please?
For a particular angle theta, the cosine function has the following values within one cycle: cos(0) = 3, cos(π/4) = 0, cos(π/2) = -3, cos(3π/4) = 0, and cos(π) = 3. What is the rule for the cosine fun...
Oct 29, 2024
Sin(x)=5/13 and x is in quadrant 1: find sin 2x, cos 2x, and tan 2x.?
Given that sin(x) = 5/13 and x is in the first quadrant, how can I calculate sin(2x), cos(2x), and tan(2x) using the double-angle formulas? I understand this involves trigonometric identities, but I’m...
Girl: How do I look? Boy: TanC over SinC or TanC/SinC What did the boy really say?
I would like to understand the meaning behind the boy's response: "TanC over SinC" or "TanC/SinC." What did he really mean by that? I appreciate any help you can provide. Thank you!
tree that is 10 yards tall casts a shadow 14 yards long, roud to nearest degree.?
A tree that is 10 yards tall casts a shadow that is 14 yards long. What is the angle of elevation of the sun, rounded to the nearest degree? Please choose one of the following answers: a) 54 b) 36 c)...
Using the double angle formula,find cos 120 degrees?
Using the double angle formula, how can we find the value of cos(120 degrees)?
The point p(15, 20) is on the terminal side of θ. evaluate sin θ.
Given the point ( P(15, 20) ) lies on the terminal side of the angle ( \theta ), calculate ( \sin \theta ).
Algebra 2 help?
For an angle θ, given that the point (15, −8) lies on its terminating side, what is the value of cosine θ? Additionally, could you explain the steps involved in finding this value? Thank you!
cot(x+y) = (cotxcoty-1)/(cotx+coty)?
How can I prove the identity cot(x+y) = (cot x cot y - 1) / (cot x + cot y)? I would really appreciate your help!