270 Answered Questions for the topic Trigonometric Functions

Application of trigonometric functions to do with a graph about high and low tides

If the trigonometric equation is y=0.9cos(pi over 12.5 multiplied by x) and the depth of the water at low tide is 0.4m what is the depth after low tide? (2.d.p)

Find the values of the trigonometric functions of θ from the information given. sec θ = 6, sin θ < 0

I am not very sure how to go about this or start to answer it.

find all values of theta (in radian) such that tan (2/3 theta) = - sqrt3, in the interval [0, 2pi)

 find all values of theta (in radian) such that tan (2/3 theta) = - sqrt3, in the interval [0, 2pi)

Prove that cos(x)tan(x) divided by cosec(x)^2 equals cos(x)^3 divided by cot(x)^3

Prove that cos(x)tan(x) / cosec(x^2) = cos(x)^3 / cot(x)^3

Solve: sin2x-sin4x+sin6x=0

This question is from trigonometry chapter in mathematics of class 11th. "Cbse board"

what is the domain of y=sqrt(tan(x))

y = sqrt ( tan(x) ) 

Limit of a cotangent function as x approaches infinity?

Is the limit well defined?Why or why not? the limit as x → ∞ of Cot ((x^2+1)/(x+3))

fiind all solutions at interval [0,2pi] sin^2x - cos^2x = 0

 find all the solutions at the interval [0,2pi] for the equation sin^2 x - cos^2 x = 0

word problem

Ms. Burbage wants to put 12 strips of different colored ribbon around the edge of a clock to help her first graders separate the hours. If the radius of the clock is 10 inches, then how long is... more

The trigonometric ratio of 13pi/3 are same as that of?

pi/3, pi, pi/6 or 11pi/3??  

cos^2x(tanx+1)^2 -1

I need to simplify this but I just can't find my way out of it.

Points of discountuity

how do we find pointa of discountity of trignometric functions such as tan^-1(5x)   or sec(5x)

using reference angle find the exact value

tan(sin-1(x+1⁄2))

H=10+3cos6t-sin9t-3sin3t show h can be rewritten as h= 13+4sin^3 t-6sin^2 3t-6sin3t

Please show the trigonometic identities and working

Solve the equation 8sin(1/2)x - 5 = 0 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

Solve the equation 8sin(1/2)x - 5 = 0 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

Solve the equation 8sin(1/2)x - 5 = 0 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

Solve the equation 8sin(1/2)x - 5 = 0 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

Solve 3cos 2x = 1 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

Solve 3cos 2x = 1 for 0 < x < 2pi. Round your answers to the nearest hundredth of a radian.

State the amplitude and period of this function: y = -3cos(pi/3)x.

State the amplitude and period of this function: y = -3cos(pi/3)x.

(cotB)(sin^2 B)(cotB)

Write in terms of sine and cosine and simplify the expression

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 

sec( theta+45)=1

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.
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