(cos (11π/15) cos (π/10)) - (sin (11π/15) sin (π/10)) (p.s. π = pi) Please don't give a decimal as the answer. I need the exact answer.
(cos (11π/15) cos (π/10)) - (sin (11π/15) sin (π/10)) (p.s. π = pi) Please don't give a decimal as the answer. I need the exact answer.
The US Air Force was running maneuvers with the F22 Raptor, flying low enough so that you could see the shock cone created as the jet flies overhead at supersonic speeds. You wanted to take a video...
verify that: cos^3(x)+sin^3(x)=1/2* (cos(x)+sin(x))*(2-sin(2x))
I thought it could possible be solved by a double angle formula, but I cant seem to make it work
Show that if α, β and γ are the angles of a triangle, then we would have but tanα+tanβ+tanγ=tanαtanβtanγ I need help with this. I've been trying but getting nowhere. Thanks....
find all the solutions of the given equation in the interval 0≤x<2pi
Having trouble with these two problems... Verify each identity sin2 x/2=csc x-cot x/2 csc x 2tan x/2=sin2 x +1 - cos2 x/sin x (1+ cos x)
Use a graphing calculator to approximate, to three decimal places, the solutions to the equation. If there is more than one solution write them separated by comas.
(tanv+1)^2(tanv-1)^2=2sec^2v
This is for my trig class. Thanks for the help!
A. sin22.5 degrees and B. tanpi/12 degrees
I am trying to find an equation to satisfy these conditions. I have tried 5900(.96t) and that is not the correct answer. I am in a trigonometry class so I think that it might have to include sine...
This is for my trig class. Thanks for the help!
This is for my trig class. Thanks for the help!