# Trig check my work please?

88,487 results, page 56

### trig

Use half-angle formulas to find the exact value for the following cot 75 degrees

### trig

Give an equation of a sine function of x which has a phase shift along y of -2 units and a wavelength of 3pi

### trig

Find a polar equation of this conic with focus at the pole and the given eccentricity and directrix. e=2, r cos X =-1

### trig

solve for x 6tanx - 4sinx = 1 i tried it but got a quartic formula :S 16sin^4x + 8sin^3x + 37sin^2x - 36 = 0

### trig

Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help sin (-pi/12)

### Trig

I was just wondering if anyone can explain the Law of Sines- "Ambiguity Case" to me, in a way that is easy to understand.

### trig

write down the value (corect to three decimal places of:- a) sin64= b) tan21= c) cos67.4=

### Trig.

Why is the arctan of (- square root of 3) 5 pi/6. How come it isn't broken down to 5 pi/3 since I got 10 pi/6 and that reduces to 5pi/3

### Trig

How do I find all solutions in the interval [0, 2Pi): cotx=cscx-1 the answer choices are: a.) x=Pi/2 b.) x=Pi/2 and 3Pi/2

### trig

which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane

### trig

which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane

### math, trig

What is the exact value of the cos of 23pi/12? (Twenty-three pi over 12, which is = to 345 degrees.) Thank you

### trig

find, to the nearest degree, the solution set of 4 cos^2x-1=0 in the intervak between )degrees and 360degrees.

### trig

ind, to the nearest minute, the solution set of 4 cos x + 5 = 6 sec x over the domain 0 degrees

### trig

find the exact value by using the appropriate half-angle identity: sin(5pi/12)

### trig

find the 5 other thrig functions if cos(theta) = square root of 2/2 and cotangent is less than 0

### trig

how to do the calculation while taking 'A' as 15 in the half angle formula used for calculating the value of sin 7.5 ?

### Trig math

how to split up using sum and difference identities cos (13pi/12) PLeaseeeeeeeeeee help!!! thanx a million

### trig

Find altitude of isosceles triangle if angle=53 degrees (the equal angles) and the base is 8 inches.

### Math/Trig

Write an equation for a cosine function with an amplitude of 2/3 , a period of pi, and a vertical shift of 2 units up.

### Pre-Cal: Trig

The point (7,2) determines a poistion angle "t". Find the exact value of sin(t).

### Pre-Cal: Trig

The point (7,2) determines a position angle "t". Find the exact value of sin(t).

### trig

How do I find the exact value of sin2x when secx is equal to the negative square root of three

### trig

given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches

### trig

A right triangle has sides of length 5, 12 and 13. What is the sine of the angle opposite the hypotenuse? (A) 1 (B) 5/12 (C) 5/13 (D) 12/13 (E) None of the above.

### trig

simplify (sec^2x + csc^2x) - (tan^x +cot^2x) to either a constant or a basic trigonometric function.

### trig

Find the exact value of the trigonometic function at the given real number of cot(5pi/3)

### Pre-calculus

find the trig functions of angle x if the terminal side of x passes through the point (-12, 5).

### Alg/2 Trig

Given the functions f(x)=-x^2+7 and g(x)=3x+4 find f(g(-5)) Write the composition above using an alternative notation.

### trig

All solutions in interval [0,2pi) of cosine theta plus one equals zero

### trig

All solutions in interval [0,2pi) of cosine theta plus one equals zero

### trig

If S is an element of [ 3pi/2 , 2pi ] what quadrant does the terminating side lie in and evaluate for sine theta

### Math- Trig

In an oblique triangle ABC, A=30 degree, and the perpendicular from C to AB is 12 inches long. Find the length of AB.

### Trig

Which trigonometric function can equal or be greater than 1.000? A Sine B Cosine C Tangent D none of the above

### trig

if you are riding on a ferris wheel that is 60 ft tall and it takes you 5 minutes to make 1 revolution, what is your linear velocity?

### trig

Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37

### trig

Find the exact value. Without using a calculator a) cos (-17pi/6) b) sec (3pi/2)

### trig

If point (3, -8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA

### trig

What is the length of the circular arc intercepted by a central angle of 20degrees in a circle with a radius of 5cm?

### trig

use the discriminant to solve for the smallest value of b that would make the roots of the equation x^2+bx+5=o imaginary

### trig

Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)

### trig

Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)

### college Calculus Help!

Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x

### college Calculus Help!

Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x

### Trig Proofs!

I'm having trouble solving this proof. Can you help? cos^3+sin^3/cosx+sinx = 1-sinxcosx Thanks!:)

### Trig.

finnd a possible measure of the angle drawn in standard position that passes through the points (ã2,-ã2)

### trig

SOlve over (2,pie) and find the general solution in radians. 2sin3x = square root of 2

### algebra-trig help asap

Evaluate the expression. Assume that all angles are in quadrant 1. 1. cos(arccos4/5)

### algebra-trig help asap

Evaluate the expression. Assume that all angles are in Quadrant I. 14. tan(arccos 3/5)

### trig

Consider the trigonometric function f(t) = -3+4cos(pi/3(t-3/2)) What is the amplitude/period of f(t)? What are the maximum and minimum values attained by f(t)?

### trig

If x and y are complementary angles and 5 tan x-12=0,calculate by using a diagram the value of 2sin(squared)x+cos y.

### trig

solve equation for the exact solutions if possible put answer in degrees. 2tanx/3-tan^2x=1

### Precalc/Trig 1

What equation would you use to show that the point ((square root of 11)/(6), (5/6))is on the unit circle?

### trig

Suppose that the point (x,y) is in the indicated quadrant. Decide whether the given is positive or negative. 25.) II, x/r 26.) III, y/r 27.) IV, x/y

### Trig identities:(

Sin4A - cos4A = sin2A - cos2A Can i just square root the left side??:O

### trig

solve exactly over the indicated interval: cot(theta)=0, all real numbers

### MATH -

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?

### Math Help

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?

### trig

use an identity to write the expression as a single trignometric function. squ root 1-cos48°/2

### trig

Write the complex number in trigonometric form, using degree measure for the argument. -12 - 16i

### trig

use a half-angle identity to find the exact value of tan 105 degrees.

### Trig

How do you solve this problem? y = 2sin 3x + 4sin 2x I haven't done these types of problems for awhile and have forgotten how to do them.

### trig

A and B are positive acute angles. if sin A=4/5 and cos B=8/17 find the value of tan (A-B) is the answer =43/100

### Math (Trig)

Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)

### Pre-Calc/Trig...

Am i correct? A vertical shift is an example of a non-rigid transformation. True

### Pre-Calc/Trig

I have looked this up, but still cant figure out what it is.. What is the projectile motion function?

### Pre-Calc/Trig

Identify the asymptotes, removable discontinuities, and intercepts for the graph of the function. d(x)=(x^2-12x+20)/3x

### Trig

Find the arc length of a circle that has a central angle of 270 degrees and a radius of 10 yards.

### Trig

Find the length of a chord intercepted by a central angle of 25 degrees in a circle of radius 30 feet

### Trig Question

Find solutions of the following equation which lie in the interval [0,2pi): 6cos(3theta)/(2)+3=0

### Trig/PreCalc

Use an algebraic method to eliminate the parameter and identify the graph of the parametric curve. x=5-3t y=2+t -1<-x-<3

### trig

Suppose that θ is an angle in standard position whose terminal side intersects the unit circle at , −15/17,−8/17

### algebra1

could you walk-through the steps to solving this problem because I am stuck; 3x-5(3x-7)=2(x+9)+45 Let me know if you have a question in any step. 3x-5(3x-7)=2(x+9)+45 3x-15x+35= 2x+18+45 -12x+35 = 2x+63 -35 -35 -12x= 2x +63-35 -12x= 2x +28 -2x -2x -12x-2x = 28 -14x= 28 -14x/-...

### medical insurance forms

please check my answer thanks True or False The information for Blocks 1-9 on the CMS-1500 can be obtained from the medical treatment record I said True

### Agility Training

Please check my answer thanks :) A gamble is a course that's A. determined by a series of colors. B. set out by the judge. C. established by another handler. D. the same from competition to competition My answer is B

### chemistry(please check formula)

how much energy i kj is required to change the temp of 1.00 kg of fe from 25.0 degrees celsius to 1515 degrees celsius? so it would be q= (.449)(1.00)(1490)-correct?

### Algebra check+help?

Write the equation so that y is is a function of x. 1) 5x+4y=10 Would you minus the 5 from the 10 first? and 4y=5-10? Because she only wants us to write the equation, not exactly solve for it. And doesn't want us to overthink. Could I please have someones help? Thank you. -...

### Math(Please check)

Find the slope of the graph at y=sqrt 2x^2 +1 at the point (2,3). First I plugged 2 into the equation and got 3. Then the derivative of the equation is 4x and then I multiplied that by 3 and got 12. Is this correct?

### Algebra II-Please check calc

How many ways can a teacher arrange 10 students in a front row if there are 60 students I think I do 60!/50! = 2.74 *10^17 How many ways can you choose committee of 7 from a total of 20 (20 nCr7) = 77520

### calculus

I am learning derivatives and I despise having to use the definition of the derivative. Please check my answer for this particular one! it is different from the one I get by differentiating. The question: f(x) = 2+x / x^3 my answer: -6x^2-2x^2

### math

would you please check these for me thank you. +6+-5--4= 5 also Sara only has dimes and nichels in her coin jar,they are ina ratio of 3 to 5.If she has 120 coins in the jar,how many are dimes? 45 correct??

### Check Fib. Number problem please

For any prime number p except 2 and 5, either Fp-1 or fp+1 is divisible by p. If I showed that this is true for p=7, the answer should be F8---is this correct because f8 is 21. P=11 would be divisible by 55 which is F10.

### Math! Please check!

Name the intersection of planes ADE and BEA. A- plane BED B- plane ABC C- line BD D- line AE My choice is D. (Sorry that I could not post an image)

### Math

Which is NOT true about the Table? x: 1 | 2 | 3 | 4 | y: 1 | 4 | 9 | 16 | A. it shows a linear function B. x increases by 1 each time C. the rate of change is not constant D. y increases by a different value each time D please check

### Chemistry(please check my answer)

Which of the following is an oxidation reaction? A. AuCl4- → AuCl 2- **** B. Mn7+ → Mn2+ C. Cl2 → ClO3- D. Co3+ → Co2+

### English

In a research-based paper it is sometimes OK to quote directly from a research source without any attribution. True False I say False. Please check my answer.

### Language Arts

Circle the correct form of the pronoun. 7. Both John and Jim said (he, they) were not exercising regularly. Circle they 8. The jury was asked to return to (its, their) seats. Circle their 9. Please remind each student to bring (his or her, their) homework tomorrow. Circle ...

### Statistics - Central Limit Theorem

Actually I'm asking this question because I found my answer for the HW question somewhat weird, but I still can't determine where did I make mistakes. Given: A basketball player can score on a particular shot with p = 0.3. Let S be the number of successes out of 25 independent...

### Social Studies

What agreement set the official border of the Louisiana Territory between Canada and the United States? A. Rush-Bagot B. Monroe Doctrine C. Adams-Onis Treaty D. Convention of 1818 Can you please check this, my answer is C. Am I right?

### E.L.A. PLEASE CHECK!

In which of the following sentences is the subject understood? A- Slowly taxiing up to the terminal was a huge airplane. B- It was painted with pink stripes and yellow circles. C- Step up to the desk and give the clerk your ticket. D- You are on your way to a special place. I ...

### sociology

All of the following reasons cause a variance in divorce rates among segments of the population in the United States, except: (Points : 3) 1. Age at first marriage 2. Education 3. Race and ethnicity 4. Social class <-------- Please check my answer.

### Social Studies

what was the purpose of the constitutional convention held in philadelphia in 1787? A.To sign the treaty of paris B.To select the nation's new president. C. to revise the Articles of Confederation D.to draft a declaration of independence My answer is c @Ms.Sue can you please ...

### English

Evaluate which of the following is the best example of a summary. A.In Goldilocks and the Three Bears, a character named Goldilocks sneaks into a home owned by bears. She eats a bowl of porridge and falls asleep in the house. When the bears return, Goldilocks awakens. ...

### Geometry

Please Help! How do I work this? The Volume of the box is represented by (x^2+5+6)(x+5). Find the polynomial that represents the area of the bottom of the box.

### Geometry

Please Help! How do I work this? The Volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box.

### Algebra

How do I work this correctly? I know the answer is 7 but I am doing something wrong.Here is what I have... x+ã(2x-5)=10 x+ã(2x-5)^2=10^2 x+2x-5=100 3x-5+5=100+5 3x=105 x=35 PLEASE HELP!

### Debating

Using debating terminology can you help me define this please? That there should be compulsory exercise at work thanks a heap Minnie W

### math

A. write (2^3)^3 as a single power of 2. show your work . B.write your answer from part A as a standard number. please help i don't get it.

### Chemistry

How many ml of .050 M NaOH are required to prepare 1500.0 mL of .0020 M NaOH? Please show work, I'm not sure how to do this. Thanks!