Trig check my work please?

88,487 results, page 34

trig

cosxcscx-2cosx=cscx-2

trig

cos(x+B)=cosxcosB-sinxsinB

Trig

How do I solve this problem? tan (30° + x)

equations trig

2cos^2x-3sinx=0

equation trig

cosx-sinx<1/2

Math (trig)

4cos(x)+5=6sec(x)

HELPPPPPPP (TRIG)

4cos(x) 5=6sec(x)

trig

Prove tanAsin2A=2sin^2a

trig

What is the angle B? Given that A=46 degree b=4 c=8

trig

cotxcot2x-cot2xcot3x-cot3xcotx=1

trig

25q to the second power -81=0

trig

What is the graph of y = 3 sin (3x + 180)?

trig

if 8 tan Q=15 then sinA-cosA=?

trig

cotx/secx-tanx

Alg & Trig 2

find the sum of 1/2, 2/7x, and 5/x

Alg & Trig 2

find the sum of 1/2, 2/7x, and 5/x

trig

solving radical equations... help! 5+¡în+1= n+4

trig

sinx+cosxcot=csc

trig

how do you explain y=2 cos(1 half x)

Trig

Are 120 and -240 coterminal?

algebra/trig

solve: ln12x = 6

Trig

What is the phase shift of y=6cos(6x+pi/2)?

trig

Show that (90-45)=cos90 cos 45

trig

What is the trigonometric notation for 3-3(sqrt3i)?

trig

what is the cube root of (-64i)?

Trig

What is the vertical asymptote of y=tan(x-pi/3)?

Trig

What is the period of f(x)= 1/2 tan(3x+pi/2) and -2/3 cos(x/3-1/2)?

trig

How would you go about finding x and y?? [x-8 2 2y] [9x-16 2 6] [ 2 -7x 7] = [ 2 -7 7] [-4 y-4 2] [-4 -1 2]

trig

sec(90degrees -theta)

trig

verifying a solution. 4cos^2 2x-2=0

trig

find cos (x/2) when sint =12/13

Trig

Find [4(cos115+isin115)]^6

trig

If z=1+i, then the multiplicative inverse of z esqaire is:

Trig

cos270degrees -5cos180degrees (0/1)-5(-1/1) 0-5(-1) does it equal -5 or +5?

trig

how would i graph 3sec(x + (pi/2))

trig

2x+5y+3=0 what is the value of sin theta

trig

how do you factor completely.. 18x^2+3x-3?

trig

Triangle PQR is congruent to P'Q'R. If PQ= x+y, P'Q'+10, Q'R'= 3x-y, and QR=14, then what is x and y?

trig

Find value of tan75/2

trig

CosA*Cos17=1 then determine A

trig

How do you evaluate the expression cos3pi

Trig - Thanks Damon and Lindsey

Thanks a bunch

trig

prove that tan^2x+ sec^2x =1

trig

express 4/5-ã13 plz

trig

express 4/5-ã13 plz

trig

what is the amplitude of y=2+cos(-1/2 theta)?

trig

3x^2+16y^2=48 conic sections

Trig

(x+3)^2/4^2 + (y-2)^2/5^2 The location of the Foci are at: a.(-3,-1) and (-3,-5) b. (-3,2) and (-3,5) c. (-3,-3) and (-3,7) d. (-3,1) and (-3,-5) I get (-3,2) and (-3,5) Am I correct?

trig

Give the reciprocal of the following. 7/15

trig

Find sec^2 x (4 tan^2 x-3)

trig

sin2x=cos3x then sinx=?(if 0<x<pi/2)

trig

If A=55 degrees 55 minutes and c=16, find a.

trig

Tan(cos inverse 5x)

trig

if cot(x-10)=tan(4x) what does x equal?

Trig

If CSC X = 4 in the quadrant 1, what is COS X?

Trig.

What is the trigonmetric fact for sin 3.14/8?

trig

simplify cox^2x-cos^4x

Trig

Factor 4cos^2x+4cosx-1=0

TRIG

Factor 4cos^2x+4cosx-1=0

Trig

Rewrite 7pi/5 in degrees.

trig

2sec(3x-(pi/3)) Find the period.

trig

find the math product of u and v u= (6,7) v= (-3,9)

Trig

Find the eccentricity of the ellipse. x^2+7y^2=35

trig

Find the amplitude of f(t)=1/3sin8t

trig

what is the angle of A? C = 125 degrees, a = 18, and c = 42

trig

find the period of f(x)=-2cot x/5

trig

what is the magnitude and direction of the vector U= -2i - 3j

trig

determine the period of y = tan 2x

trig

what is sin x = 1, what is the value of csx

trig

If tan y = -4/3 and y is in Q I'VE find cos 2y

trig

If tan y = -4/3 and y is in Q I'VE find cos 2y

Trig

15^(-x-3)=-17^(-3x) using a log base 10

trig

simplify (1-sec^2(è)/(tan^2(è)

trig

i need to know how to do evaerything because i am stupid

TRIG

what is the explicit formula for the sequence 3,7,11,15

trig

Find the dot product a*b. a= (5,-9), b=(4,-3)

trig

tan200(cot10-tan10)

trig

tan200(cot10-tan10)

pre-calc/ trig

Sinx=0

Trig

sqrt(100+(10cotx)^2)

Trig laws help

mÚA=15.52, c=18ft, b=16ft, then a=? ft

Pre-Calc/Trig...

what is In e^4.3 equivalent to? How?

Pre-calc/trig

5=log3(x^2+18)

trig

what is terminal point of 5pi/4?

Trig

(Cos/1-sin)- tan

Trig

(Cos/1-sin)- tan

trigonometry (Trig Equation)

sin 3x=-1

trig

Solve for sin4x=sin2x?

Trig

find the angle between u=7i+2j and v=-4j

trig

Reiny 2+1/3*tan(theta)=2 How do you get 0? Thanks for your help.

Trig Identities

secx - sinxtanx

trig

Hi there! I NEED SERIOUS HELP, PLEASE!!! i have such a hard time with verifying identities! The question is: [(sin(theta/2)) / csc(theta/2)] + [(cos (theta/2) / sec(theta/2)] = 1 I have a few ideas on how to solve this, but am mainly not sure how to get rid of (theta/2). I am ...

homework

Airline work: Topic: Philippines 1. Does Philippine Airlines check your ticket before take off or when your in the sky? (there is a posiblitiy that they could do both or none at all) 2.Did Philippine Airlines change there seat and improve there seats to luxury? 3.Do u think ...

Please help math

suppose a triangle has an area of 10ft^2. IF the base of the triangle is 1 foot longer than the height of the triangle, what are the lenghts of the base and height? please help and show work so i understand how to do it

Please help check physical science!

Please help check my answers I really want to make a 100%! 1. A mechanical wave moves through a medium, which can be (1 point) A. a liquid. B. a solid. C. a gas. D. all of the above <-- This one 2. Which type of kind of wave causes the medium to vibrate only in a direction ...

Math

Hi, would someone mind just checking the answer I got for this formula and tell me if I'm on the right track or not. Question... x+y=21 3x=4y Answer I got... x=84 y= -63 I didn't get that. Check your math. I found 7y=63 but not y = 63. You can always check your answer. Is 4X...

Algebra

Hi this question was already asked but there is still no correct answer. I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks The equation is: .05x-.6(x+2)=.08 Please show the work as...

Ethics

please check my answer thanks :) Mediation has which type of characteistic ? A. THe court controls B. The parites remain in control C. THe mediator decides whi is right I said B

Rounding

Round to two decimal places a. 3.1459 b. 6.003 c. 42 d. 6.0233 x 10^23 e. 14.456 + 3.87 f. 9.9999995 - 0.0108 g. 67.3 x 6.667 h. 4.93 / 3.946 check my answers please a. 3.15 b. 6.00 c. 42 d. 6.02 x 10^23 e. 18.33 f. 9.99 g. 448.69 h. 1.25

Anatomy and Physiology

Please check my answer thank you An approach to skin cancer treatment would involve surgery, either alone or combined with what ? I think chemotherapy

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