270 Answered Questions for the topic Trigonometric Functions

06/25/19

#### 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)

10/08/18

#### 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.

10/07/18

#### 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)

09/30/18

#### 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

09/05/18

#### Solve: sin2x-sin4x+sin6x=0

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

07/28/18

#### 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))

07/16/18

#### 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

07/08/18

#### 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...
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06/07/18

#### Points of discountuity

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

04/27/18

#### 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

04/13/18

#### 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.

04/13/18

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

04/13/18

#### 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.

04/13/18

#### 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.

03/08/18

#### how to get the five trigonometric function of secA =2

find the other five trigonometric function of sec A = 2

03/08/18

#### 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...
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03/08/18

#### tan theta=-3.966 and pie/2<theta<pie Find sin theta

Find the values of sin theta and cos theta

03/04/18

#### 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...
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03/02/18

#### Solve on the interval [0, 2pi) (cosx+1)(2cos^2x-3cosx-2)=0

I'm really confused on how to solve this.

03/02/18

#### 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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