sec x=sin2x/sinx - cos2x/cosx
sec x=sin2x/sinx - cos2x/cosx
angles A and B are located in the first quadrant. if sinA=5/13 and cosB=3/5, determine the exact value of cos(A+B)
A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the high-quality version is 4.4 MB. Yesterday, the...
a sine function has a maximum value of 4, minimum value of -2 and period of π. it passes through the point (π/3,1). what is the phase shift
Which trigonometric substitution can be used to evaluate the integral: ∫ ( (dx)/(√(a2+x2)) ) ...? x= a tanθ x=a sinθ x=a secθ
An aeroplane leaves Airport A and flies due south for 352 km to Airport B. It then flies to Airport C, which is 63 degrees east of north of B, and 42 degrees east of south of A. Finally, it...
An aeroplane leaves Airport A and flies due south for 352 km to Airport B. It then flies to Airport C, which is 63 degrees east of north of B, and 42 degrees east of south of A. Finally, it...
A sailing boat is heading due East for 400 metres before changing bearings to 235 degrees (True bearings). How far does he need to travel to be due South of his starting position?
cosΘ+tanΘ=x, secΘ +cosΘ=y. Eliminate Θ. ...
In circle O, CD = 44, OM = 20, ON = 19, CD is perpendicular to OM, EF is perpendicular to ON , (The figure is not drawn to scale.) Show your work. a. Find the radius. If your answer is not...
11. Determine whether a tangent line to circle O is shown in the diagram, for AB = 7.75, OB = 4, and AO = 8.75. Explain your reasoning. (The figure is not drawn to scale.) --- I figured...
Jake left the campsite hiking in the direction N52oW at the constant rate of 4.2 miles per hour. At the same time, Sara left the campsite hiking in the direction S58oW at 3.5 miles per hour. Two hours...
sin4x=(3/8)-(1/2) cos2x+(1/8)cos4x
A) If tana=(-7/24) and cot B= (3/4) for a second-quadrant angle a and a third-quadrant angle be, find sin(a+b)
1. Solve: 2 sin x =-1 2. Solve: 4cos² x=1 3. Solve: 3 tan x= √3
1. find sin(5π/12) exactly 2. find sin π/8 exactly 3. given that tan Θ= -3/4 and Θ is in quadrant II, find each of the following: cos 2Θ
1. Multiply and simplify: sin x(cot x- csc x) 2. Factor and simplify: csc² xsec² x-csc² x 3. prove the identity: cos² x+1/sin² x= 2csc² x-1 4...
a. Quadrant II b. Quadrant I c. Quadrant IV d. Quadrant III
A surveyor notes that the direction from point A to point B is S55°W and the direction from A to point C is S24°W. The distance from A to B is 226 yards, and the distance from B to C is 359 yards...
Solve ΔABC β=114.36 b=.607 c=.234 a? γ? and α? 2.)To determine the distance between two points A and B, a surveyor chooses a point C that is 345 yards from...