9,261 Answered Questions for the topic trigonometry

Trigonometry

09/27/21

Find a possible formula for the trigonometric function whose values are in the following table. X: 0,2,4,6,8,10,12 Y:3,1,-1,1,3,1,-1
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Trigonometry

09/26/21

What is the derivation of the power reducing formula for cosine?

What is the proof for power reducing formula for cosine?
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Trigonometry

09/24/21

Find ​(a) the complement and ​(b) the supplement of an angle with the measure

14°13'supplementComplement
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Trigonometry Math

09/23/21

Exact value of trig function
given that sin(a) = -1/2 and tan(b) = 2/7 in the interval [pi/2, 3pi/2] what is the exact value of tan(A)?
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09/23/21

How to find missing angles using the 30-60-90 special right triangle.
if opposite 60° (b) is 5√2, find what are the missing lengths. what is the length opposite 30°(a), and the length opposite 90° (c).
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Trigonometry

09/22/21

Tan 15 degrees ÷ 2- 2tan squared 15 degrees

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Trigonometry Physics

09/21/21

I need help with this questions
1.) A force of 20 N acts towards the west. Another force acts at the same point so that the resultant of the two forces is zero. What is the magnitude and direction of the second force?2.) A force... more
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Trigonometry Algebra 2

09/20/21

How would I rewrite and solve the equation P=2l+2w for w?
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Trigonometry

09/19/21

Plz hep step by step
Find the area of the sector of a circle with diameter 30 feet and an angle of 𝜋 5  radians. (Round your answer to four decimal places.)
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Trigonometry

09/19/21

Plz help step by step
Find the length of an arc in a circle of radius 6 meters subtended by the central angle of 50°. (Round your answer to two decimal places.)
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Trigonometry

09/19/21

Find the indicated angle 𝜃. (Use either the Law of Sines or the Law of Cosines, as appropriate. Assume a = 16, c = 12, and ∠C = 45°. Assume that 𝜃 is greater than 90°.)
Round your answer to one decimal place.
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Trigonometry

09/18/21

A 21-ft ladder is leaning against a building. If the base of the ladder is 8 ft from the base of the building, what is the angle of elevation of the ladder? How high does the ladder reach?
(a) (Round your answer to one decimal place.)(b) (Round your answer to the nearest whole number.)
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Trigonometry Math Physics

09/18/21

Inclined Plane Problem
A 230-newton box rests on a plank 5.00 meters long. One end is 1.20 meters higher than the other end. Find the components of the force the box exerts:a). Parallel to the inclined planeb).... more
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Trigonometry

09/17/21

Write the first trigonometric function in terms of the second for 𝜃 in the given quadrant. tan(𝜃), cos(𝜃); 𝜃 in Quadrant II
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Trigonometry Math Algebra 2 Precalculus

09/17/21

URGENT- Please help
Given cot A=4/9​ and that angle A is in Quadrant III, find the exact value of sin A in simplest radical form using a rational denominator.
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Trigonometry Math Physics

09/16/21

EQUILIBRIUM & REACTIONS
Force “P” is pushing against a cantilever beam as shown. Draw a free body diagram indicating the three reactions at Point A: horizontal reaction (RX), vertical reaction (RY), and moment reaction... more
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Trigonometry

09/16/21

Sum and Diff Formulas
Find the exact value of sin(a-b) if sin a=5/13 and sin b = 4/5 if a and b are between 0 and pi/2
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Trigonometry Math

09/14/21

Math, Trigonometry
Molly and James are on the opposite sides of a river. To find the width of the river, each of them hammers a stake on his/her bank of the river on such a way that the distance between the two... more
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Trigonometry Math

09/14/21

Math, trigonometry
Suppose the angle of elevation of the sun is 30 degree. find the length of the shadow of a 5.5 feet tall person? A 15 feet long ladder is leaning against a vertical wall. if it makes an angle of... more
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Trigonometry Physics

09/13/21

Solve these problem algebraically, using the Pythagorean theorem
1.) Find the resultant of two components, 3 km west and 4 km south.2.) Find the resultant of two components, 9.0 km north and 12 km east.Thank you :)
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09/13/21

why do so many calculators have different answers to "19(cos(38))"?
i tried six identical calculators and most said ≈14.97, but one said 18.14. google says 18.14, microsoft calculator says 14.97, desmos scientific says 14.97, desmos graph calculator says 18.14,... more
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Trigonometry Geometry

09/13/21

the two equal sides of an isosceles triangle are each 42 centimeters. If the base mesures 32 centimeters, find the height and the measure of the two equal angles

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Trigonometry

09/12/21

find the length of the Arc?
find the length of the arc intercepted by the given central angle a in a circle of radius r. Round to the nearest tenth. a=PI/4, r=12ft
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Trigonometry

09/11/21

Use a calculator to find the length of each side to four decimal places. What's a and b?

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Trigonometry

09/11/21

Solve for the unknown sides of the given triangle. Whats a and c?

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