9,261 Answered Questions for the topic trigonometry

Trigonometry

01/24/22

solve: 3sin^2x-8sinx-3=0, where 0<x<2pi. the answer key said the answers are x=3.4814 and 5.9433. I understand how to get the 3.48, but how do you get the 5.94?
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Trigonometry

01/24/22

The measure of two angles of a triangle are given. Find the measure of the third angle. 56 Degrees and 52 Minutes and 119 degrees and 2 minutes
Do not know how to set this one up. Please help.
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01/24/22

Trig sub integral problem
Would anyone be able to help me through this problem using trig sub?∫ dx/ sqrt(4x^2 + 9)
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Trigonometry Math

01/24/22

how would you prove this: tan(x-y)+tan(y-z)=(sec^2(y)(tan(x)-tan(z)) / (1+tan(x)tan(y))(1+tan(y)tan(z))
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Trigonometry

01/24/22

if cot(x)=(-12/5), where 3pi/2<x<2pi, what is sin2x? what is tan(x/2)?
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Trigonometry

01/23/22

Find ​(a) the complement and ​(b) the supplement of an angle with the measure 16 Degrees and 24 Minutes
As the title aboves states, please help me solve this as I have no clue where to begin.
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Trigonometry

01/21/22

Given cot x= 3/4 and cosec y= -13/5 where x and y are in the same quadrant . Without finding the angles x and y, determine the exact values of sin(2x)- cos y/sec x.
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Trigonometry Math Precalculus Algebra

01/20/22

Is Trigonometry done differently in the us?
Im italian and I've watched some videos from americans and noticed a weird thing. Let's talk about a linear trigonometric equation like this: sinx+cosx+sqrt(3)=0, I've seen americans solving it by... more
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Trigonometry Math Calculus Precalculus

01/20/22

need help with understanding math problem
How is sin(x) = cos(x) the same as tan(x) = 1 and result in x = pi/4 ? Please give the steps to solve for x in sin(x) = cos(x). Thank you.
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Trigonometry

01/19/22

question in descriptions

a pendulum swings back and forth between the angles, in standard position, of 210degrees and 330degrees. if the pendulum is 38cm long, what is the exact horizontal distance the tip of the pendulum... more
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Trigonometry

01/19/22

lets say you have a student loan of $20,000. it generates interest every month, in which the rate is 1% applied monthly for 4 years . How will much you own when you graduate?
Show the calculation you will do to find how much you’ll owe when you graduate.
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Trigonometry

01/18/22

in 2021, your strawberry harvest yielded 203 pounds of strawberries. 203lbs is a 40% increase from last year’s harvest. How many pounds of strawberries were harvested last year?

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Trigonometry

01/18/22

Given the function value of the acute​ angle, find the other five trigonometric function values.
cos √7/7
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Trigonometry

01/18/22

Bank America offers 1% interest every month. Bank Boston has a clever marketing department and advertises 12% interest every year! Is this the same deal? If not, which is better? Show your thinking.

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01/18/22

Simplify the trigonometric expression and identify the trigonometric identities used: cos^2(θ)-1 / cos^2(θ) - cosθ
cos2(θ)-1 / cos^2(θ) - cosθ
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Trigonometry

01/15/22

A point on the terminal side of an angle θ in standard position is given. Find the exact values of the six trigonometric functions of (-1/6, 1/8). sint = cost = tant = csct= sect = cott =
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Trigonometry

01/15/22

The point given below is on the terminal side of an angle θ in standard position. Find the exact value of each of the six trigonometric functions of θ. (-4,5)
The point given below is on the terminal side of an angle θ in standard position. Find the exact value of each of the six trigonometric functions of θ. (-4,5)
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Trigonometry

01/14/22

Write a cosine function that has an amplitude of 2, a midline of 5 and a period of pi
Cosine equation to help me pass my math exam
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Trigonometry Math Calculus Precalculus

01/14/22

Write each expression in sigma notation.
1 − 2 + 3 − 4 + 5 − 6 + ⋯ − 10
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Trigonometry

01/14/22

Is the solution correct?
Problem: In triangle ABC, a=12, b=17, and α=21⁰. Find β, rounded to nearest whole number. Suggested Solution: Step 1: Use Sine Law; (sin β)/a = (sin α)/b. Step 2: Substitute given values; (sin... more
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Trigonometry

01/14/22

Find 4 points on the unit circle which have either a x- or y- coordinate equal to 1/ 3 . Then find all points on the unit circles whose x- and y- coordinates add up to 1/ 3 .
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Trigonometry Precalculus

01/14/22

Find the (linear) distance between two points on a circle of radius 4 if they are separated by an arc length of 4π/ 3 .
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Trigonometry Precalculus

01/14/22

Find the radius of a sector with a central angle of 30 degrees if its perimeter is the same value as its area.
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Trigonometry Precalculus

01/13/22

In each problem, angle C is a right angle. Find the side indicated to the nearest tenth. Find b if a = 11 and A = 70°
A. 4.6B. 5 C. 4.4D. 4
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Trigonometry

01/13/22

Right Angle Triangle, Find Length from Side and Angle.
A right angled triangle ABC has side lengths AC = 14, BC = x. Angle A is 27 degrees. Find the length x.
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