# algebra/trig help please

100,992 results

### algebra/trig help please

is this graphable??? y=x^2-4x-2

### trig

How do you solve cos(2arcsin 1/4) using inverse trig. functions??!! PLEASE HELP ME!

### trig

I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x0= secx i(x)= cscx

### trig

I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x)= secx i(x)= cscx

### algebra-trig help ASAP

Can someone please help me understand how to graph y=3cos(x/4)-5

### Please help me with trig.

One more problem.. Given sin t= 3/11 and cos t<0, find the values of the remaining 6 trig functions.

### Algebra II/Trig

Simplify: (n/4)/(n/m) As my answer I got: 4m Is this response correct? If not, please let me know what I did wrong.

### algebra/trig

simplify using properties of exponents ? (2y^1/5)^4 ---------- y^3/10 what would that be please hlepp

### Trig

The next two steps in solving this trig identity question are ??? 1/csctheta x costheta x sintheta x sectheta = sinsqtheta arghhh need help please

### math

could someone please refresh my memory of the basic trig functions? ex) cos^2 + sin^2 = 1? That is a trig identity. http://www.sosmath.com/trig/Trig5/trig5/trig5.html

### algebra/trig

1.Find the domain f(x)=ã(x^(2)-9) 2. Find all six trig functions for (-3,4)

### trig, precalc, math, algebra, trigonometry

Rewrite: tan(cos^−1 (v)) as an algebraic expression in v. Please help me understand.

### Trig

Im having serious issues with verifying Trig. identities. Please help! Here is an example: (tanX-secX)^2= 1-sinX/1+sinX

### trig

The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s= 2 sin pi t + 3 cos pi t, where t is measured in seconds. (a) Find the average velocity during each time period: (i)[1,2] (ii) [1,1.1] (iii) [1, 1....

### Math - Trig

Hi I have a Trig question that i don't understand, can someone please explain how to solve for it using cosine law?? A Clock with a radius of 15 cm has an 11 cm minute hand and a 7 cm hour hand. How far apart, to the nearest centimetre, are the tips of the hands at each time? ...

### trig

Write the expression and evaluate. There is only one answer whIch should match the range of the inverse trig function. Sec^-1(-2) I got 2pi/3 could someone tell me if that is right? And if not, could someone please explain how to get the answer.

### Trig

How do i set this trig problem up? PLEASE help me. Find tan (s + t) given that sin s = 1/4, with s in quadrant 2, and sin t = -1/2, with t in quadrant 4.

### trig

how would you verify this trig identity (1+cos(x) / 1-cos(x)) - (1-cos(x) / 1+cos(x)) = 4cot(x)csc(x) ? help please!

### trig

please help me. use trig. identities to find the exact value. tan 25° + tan 5° / 1- tan 25° tan 5°

### trig

please help me. use trig. identities to find the exact value. tan 25° + tan 5° / 1- tan 25° tan 5°

### algebra-trig

Can someone please explain to me how to graph sine and cosine step by step because I am so confused and I really really need help.

### algebra-trig

Can someone please explain to me how to graph sine and cosine step by step because I am so confused and I really really need help.

### Algebra-Trig Please Help ASAP

A balloon isin the vertical plane of two consecutive milestones of a road. The angles of depression of the stones as viewed from the balloon are 15 degrees and 17 degrees. Find the height of the balloon if (a) the stones are on opposite sides of the balloon, (b) the stones are...

### Algebra

ello i need help factoring I haven't had factorin sense Algebra one and now am in Algebra two and our school is screwed up were they shove in a year of Euclidean Geometry and Basic Trig inbetween first two years of Algebra... so i need to factor X^2-12X+35 I can sit there for ...

### precalc

Suppose that z1=6-8i. Find: A. The Trig Form of the complex number z1, where your theta is in degrees. B. The Trig form of z1*z2, where z2=5[cos(60degrees)+isin(60degrees)] C. The Trig Form of (z1)^4

### algebra 2/trig

x+5 1 ------- - 1= ------- x^2-2x x^2-2x

### calculus

1. what trig function has an amplitue of 1 and negative values for angles between π/2 and π? 2. what trig function never crosses the x-axis and has a value of 2 at π/6? are these correct? 3. what trig function has a period of π and is undefined for -π/...

### trig 30

For csc^2 A-1/cot A csc A, what is the simplest equivalent trig expression? The answers I have to choose from are sin A, cosA, tan A or csc A, but I don't know how?? csc theta= 1/sin theta but its ^2. Help please I don't even no where to begin

### trig

Write the expression and evaluate. There should only be one answer which should match the range of the inverse trig function. Sec^-1(-2) sec^-1(-sqrt2) Cos^-1((-sqrt3)/2) Tan^-1(-sqrt3) Could someone explain how to get the answer as well please.

### ALGEBRA 2 W/TRIG

What is the slope for y=3/4x+1?

### algebra 2 trig

8/2+√6

### Trig Proofs

Please Help: please solve this proof: cosx- cosy = -2sin(x+y/2)sin(x-y/2)

### Trig.

Please solve this equation. As you write down the steps, please give me a description on what you did. y^3 - 16y^3/2 + 64 = 0

### algebra/trig

solve: ln12x = 6

### Trig

Can you please help with this trig question: The angle of elevation to the top of a nearby mountain is 46 degrees. After walking 1 km toward the mountain, you determine the angle of elevation to be 68 degrees. How high is the mountain? Thank you for all your help.

### TRIG!

Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6 x=1 - (3/4)sin^2 2x work on one side only! Responses Trig please help! - Reiny, Monday, February 23, 2009 at 4:27pm LS looks like the sum of cubes sin^6 x + cos^6 x = (sin^2x)^3 + (cos^2x)^3 = (sin^2x+cos...

### algebra/trig

x^2+2x-15=0 solve by completing the square

### Trig/ algebra 2

if f(x) = sin4x-cos2x, find f(pi/8)

### Math (Algebra 2 / Trig)

y=x^2+bx+7 has a vertex at (-4,-9). What is the value of b?

### trig

What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4

### trig

What is the shift along x of the following trig functions? y = (3sinx/2) + 4 y = -2sin(x)-4 y = sin(-3x + 3)

### trig

express the trig. ratios sinA,secA n tanA in terms of cotA.

### Trig

Find (if possible) the trig function of the quadrant angle. sec 3pi/2

### trig

What kind of reflection does the trig function y = cos(4x/3 minus 1) have?

### trig

What kind of reflection does the trig function y = cos(4x/3 minus 1) have?

### trig

how do i do this? give the signs of the six trig functions for each angle: 74 degrees?

### trig

simplify to a constant or basic trig function.. 1+tan(x)/1+cot(x)

### trig

find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3

### Trig

Does anybody know a good website that will help me with finding the six trig functions of a point NOT on the unit cricle?

### trig

use the unit circle to find the exact value for all the trig functions of è=2ð/3.

### Precalculus

How would you solve this trig function: cos2x=sin^2-2 how do you know what trig identities to use?

### Trig

find the exact values of the six trig functions of angle... sin(-315degrees) how do i do this?

### trig

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

### trig

if (-12,5) is a pointon the terminal side of an angel 0 find the exact value of six trig funcation of 0

### trig

what is the exact value of 7pi for all trig func.?

### Trig

Find (if possible) the trig function of the quadrant angle.

### trig

write a product of two trig functions that equals 1.

### Trig

Solve the following trig equation 2cos(x-π/6)=1

### Trig

csc thea= -2, quadrant 4. what are the six trig functions?

### trig

TRIG Identities, Gr. 12: Prove: cot4x=1-tan^2x/2tan2x

### algebra with trig

how do you solve an inequality and graph it's solution?

### algebra 2 / trig

what is the square root of negative 150?

### algebra 2 trig

express the product of (2/3x^2-1/2x) and (12x+4/5) as a trinomial

### trig

What is the shift along x of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you

### trig

What is the shift along y of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you

### trig

Let Q be an acute angle such that sinQ=.6. Find the values of the following using Trig Identities: cosQ and tanQ

### Trig

Use Trig identities to verify that sec^4(x)-tan^4(x)=1+2tan^2(x), Only work with one side of the equation

### trig

how to i find the six trig values for (7pi/3)

### trig

what's the single trig. function of cos6xcosx-sin6xsinx

### Algebra 2 with trig

Simplify the rational expression. 2x/x^2+4x+3 divided by 1/x+3 plus 2/x+1

### algebra 2 trig

i need to find out how to solve this problem: 9x+2 7 ---------- + --- 3x^2-2x-8 3x^2+x-4

### ALGEBRA 2 W/TRIG

identify the equation of the line through (-7, 10) and horizontal

### ALGEBRA 2 W/TRIG

identify the equation of the line through (-2, 1) and parallel to y = 3x + 1

### algebra-trig help asap

x=sec^-1 2 I really need help with this problem. Thanks

### algebra 2 trig

if log3=a then log300 can be expressed as? 1) 100a 2)a+2 3)100+a 4)3a

### trig

Suppose that q is in standard position and the given point is on the terminal side of q. Give the exact value of the indicated trig function for q.

### trig 26

simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a basic trig function. 2. sin(theta) - tan(theta)*cos(theta)+ cos(pi/2 - theta) 3. (sec y - tan y)(sec y + tan y)/ sec y combine fractions and simplify ...

### Pre-calc, Algebra, Trig

(2x squared-3x +1)(4)(3x+2)cubed (3)+(3x +2)raised to the 4 (4x-3) Simplify

### Algebra 2 with Trig

what is the index of three with the square root of negative 432

### trig

Solve for x please? x/x+3 - 1/x+2 = x/2x+4

### trig

What is the range of the trig function sin(-3x+3)?

### Trig

Trig Identity. 1-sin^2x/1-cosx

### trig

write 2+2 squareroot of 3i in trig form.

### pre-cal/trig

PlEASE help me with this!! I need it as soon as possible....... cos(x-(pi/4))+sin(x-(pi/4))=1 Find the answer from 0 to 2pi. When I slove this, I got cosx+sinx=(1/ square root of 2). then I don't know what to do the rest. Please help me.

### Algebra & Trig

calculate the velocity of 10 meters per second with an angle of 30 degrees

### Trig

what are the rectangular coordinates of (-2(pi/6))? please help.

### trig 30

Please help I need to solve the following question for x, where 0<x<2pi. and then write a general solution for the equation. The question is 2cos^2 x + cos x =1. I need to solve this using radian measurement. I solved it using algebra and was told I wasn't allowed. Could...

### Math- gr.12 Trig.

Hi, could someone explain to me how to use a counterexample in trig to prove whether something is either an identity or equation? For ex. how would you do that with this question? sec^2x-tan^2x= cos x

### trig

Getting ready for trig semester finals. Can't figure out how they are simplifying these equations. (these are the review not actual test) tanx-sqr3=2tanx and 2sin^2+sinx=0

### Algebra 2/trig

How would I calculate the following function value? tan = 29degrees 36feet

### Algebra 2 / Trig

Given cos X = -0.147, find two possible values for X that are not co-terminal.

### trig

Please evaluate cos 15 degrees

### trig

cos2(120degrees) help me solve this please

### alg2/trig

The expression a/a-b + b/b-a is equivalent to a) 1 b)-1 c) ab/a-b d)a+b/a^2-b^2 please help!

### Trig

cotxcosx/csc^2x-1 Please help me verify

### Trig

Please help me to simplify using identities 1+tan^2x/tan^2x I don't really understand how to do please help

### 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)

### Trigonometry

Use the trig Identities to find the other 5 trig functions. Problem 7.)Tan(90-x)=-3/8 8.)Csc x=-13/5 9.)Cot x=square root of 3 10.)Sin(90-x)=-.4563 11.)Sec(-x)=4 12.)Cos x=-.2351 I need HELP!