The sine and cosine functions are used to model periodic behavior. find an internet resource that discusses the periodic behavior.

The sine and cosine functions are used to model periodic behavior. find an internet resource that discusses the periodic behavior.

cos(x+y) if sinx=12/13, cosx=5/13, siny=8/17, and cosy=15/17

tan(2Π/5)-tan(Π/15)-3½tan(2Π/5)tan(Π/15)

I do not understand what tan(90degrees-x) is equal too. I understand how cos(90degrees-x is equal too sin x but I do know know what tan(90degrees-x) is equal to

Two fire lookout stations are 10 miles apart, with station B directly east of station A. Both stations spot a fire. The bearing of the fire from station A is N25°E and the bearing of the fire from...

Posted a question earlier then found the original question which apparently had more info, nned help solving. Heres the question: The 180lb. man climbs up the ladder and stops at the position shown...

a beach has reported its high tide to be at a depth of 58ft and its low tide to be at a depth of 2 ft. High tide occurs at 6:30 am while low tide occurs 6 hours and 12 minutes after high tide. Draw...

Need help

Solve the given equation over the interval [0,2): 2sinx+ (sqrt 3) sin^2x=-(sqrt 3) cos^2x A. x=0, and x=(pi/2), and x=(3 pi/2), and x=2(pi)x=(3 pi/2), and x=(7 pi/2) b. x=(4 pi/3) and...

Provide an exact evaluation of the expression: tan (-285°).

Find the value for sin (θ) if the following conditions hold: cos(2(theta)) = 3/5 and 90(degrees) < (theta) < 180(degrees) A. (1/25) B. (sqrt5/25) C. (2 sqrt5/5) D. (sqrt5/5)

Rewrite the expression in terms of sines and cosines only and then simplify the resulting expression. tanx/secx+1 +tan x/sec x-1

Rewrite the expression in terms of sines and cosines only and then simplify the resulting expression. cot x + tan x + csc x sec x

Find the solutions of the equation: sin(2x)=1/2 in the interval [0,2pi). Show details in answer please.

Write an algebraic expression for y=tan (cos^-1 x/3) for 0<x<3.

Simplify y=x/sqrt of (7-x^2) using substitution x= sqrt of 7 cos theta for 0<theta<pie/2. Please Help!!

write an algebraic expression for y-tan (cos^-1 x/3) for 0<x<3.

Could someone help walk me through how to simply this expression to a single trigonometric function? (1+(sin2x/cos2x))/sec x

My math is online and the helper says that sin∅= y/r= (5√74)/74 = 144.5° . how do u convert that fraction into degrees. I did try the inverse of ∅=sin-1(y/r) , but for my example that...

O.7660 0.8392 1.1916 1.4198

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