278 Answered Questions for the topic Trigonometric Functions
how to get the five trigonometric function of secA =2
find the other five trigonometric function of sec A = 2
Show that the curve y=2sin2x -4x is never increasing
I am confused about how to differentiate 2sin2x or how to show that it is less than 0 and I have been trying to figure this out by various websites but it will not give me a clear answer. I would... more
tan theta=-3.966 and pie/2<theta<pie Find sin theta
Find the values of sin theta and cos theta
We are doing simple trig equations, you know, where like 1/2 =cos(theta) and you find on the trig circle what that is equal to. So it would be 60 and 300 degrees. However, I don't know how to solve... more
Solve on the interval [0, 2pi) (cosx+1)(2cos^2x-3cosx-2)=0
I'm really confused on how to solve this.
How to solve cos(x)(cosx+1)=0
I missed this class so I'm really confused on how to solve this.
Solve on the interval [0,2pi) 1-cos theta = (2 - sqrt 3)/2
I dont quite remember how to solve this, if anyone could help.
Can someone explain to me how you would establish this identity: cos(a-B)•cos(a+B) = cos^2a - sin^2B
Please include each step so I can follow along
Finding exact value of trigonometric functions.
How do you find the exact value of these trigonometric functions? My book has several listed so I’m just going to pick one in degrees and one in radians. Sin 45° Sin pi/3 There are also cos... more
what is 4 tan theta cos square theta = 3 tan theta in the text of finding all the angles between 0 and 360 degrees
I'm trying to find all of the angles between 0 and 360 and how i get it like the solving your work part
pi<theta<2pi and tan theta = (sqrt 5)/2 find the values of the other 4 trig functions
Cant find a similar type of problem on google. Textbook didn't help.
find the values of the 6 given trigonometric functions of theta with the given constraint:
function value: sin(x)=0 constraint: sec(x)=-1
TRIG 1/2 ANGLE FORUMLAS
The questions are: "If sin B = -1/3 with B in QIII, find tan B/2. Also find sin B/2 The answer for tan B/2 is-3-2sqrt(2) The answer for sin B/2 is \sqrt((3+2\sqrt(2))/(6)) These are... more
Convert products to sum or difference
a) 2sinα•cos2α b) 2cos3α•cos2α
Given a function value of an acute angle, find the other five trigonometric function values. csc =1.6 what are the other 5 functions
What are the 6 functions
Help needed in determining sin(x +y).
Question: Determine sin(x + y) when sin(x) = 1/3, -π/2 ≤ x ≤ π/2 and cos(y) = -1/4, π ≤ x ≤ 2π Much appreciated if anyone might be willing to help me out on this one.
Trigonometric Functions Grade 12 Advanced Functions
a pendulum swings back and forth taking 2 seconds to move from the position directly above from point a to the position directly above point b, as shown in the
a pendulum swings back and forth taking 2 seconds to move from the position directly above from point a to the position directly above point b, as shown in the figure below. the distance form a to... more
Solving a trigonometric equation
A point on an industrial flywheel experiences a motion described by the function h(t)=13cos(pi/0.35)t + 15. What is the general solution for the time it takes to reach maximum... more
Sinusoidal functions (wave problem)
The depth of water in a certain area can be estimated by using this equation: h(t)=-4.3cos(pi/6.35(t+1.6))+8.4 A boat requires a depth of 7.2 m to ensure safe passage into the area. The... more
Application of a sinusoidal function
Suppose a sales can be modelled by the equation; S=200+200cos[pi/6(t+2)] where t is time in months with t=0 corresponding to January for what month are sales equal to 0?
I don't understand what this trig problem is asking!!!!!! Can provide more info if needed
If csc(α) = 3, where 0 < α < π/2, and β is a Quadrant II angle with tan(β) = −7, find cos(α+β) And there are others that I'm supposed to find, such as sin(α+β), but this is just the... more
if h(x) = f(g(x)) where h(x) = sinx and f(x) = cosx which of the following could define the function g
options given g(x) = √(x2-1) g(x) = √(1-x2) g(x) = (π/2) +x g(x) = (π/2) - x g(x) = tanx I tried doing it but cos^-1(sinx) isn't possible to do with what i know
Sinusoidal functions (phase shift)
A sine function has a maximum value of -5, a minimum value of -29, and consecutive minimum values when x= -π/5 and x= (4π)/15. Determine the phase shift
A boat sails on a bearing of 75° for 128miles and then turns and sails 203miles on a bearing of 191°. Find the distance of the boat from its starting point. I am unsure how to solve this equation