alg/trig

4,385 results, page 20

trig

Verify the Identity: sec(x/2)=the square root of (2 tanx/(tanx sinx))

Trig

Solve the equation in the interval [0•,360•] Csc theta = 1+cot theta

trig

explain the methid used to get the answers 45m*cos33=37.7m and 45m*sin33=24.5

Trig

How do you convert rectangular equations into polar equations? If x4−y4=xy , then r2=atan(b); What is a? What is b?

trig

i have to find a & c, b=2.489*10 to the nineth power and i have one degree 25

trig

the question is: given sec x = 4, tan x < 0, find sin(2x), cos(2x)and tan (2x)

Math/Trig

Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.

trig

prove the identity sec^2x times cot x minus cot x = tan x

trig

if sina,cosa,tana are in geometric progression then prove that cot^6a-cot^2a=1

trig

convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.

trig

Verify the equation is an identitiy: cot(x)tan(x+pi) - sin(pi-x)cos((pi/2)-x) = cos^2x Thanks

trig

The tangent of an acute angle equals 1/2. What is the sine of the angle? (A) 1/p3 (B)p5/2 (C) 2/p5 (D) 1/p5 ( E) None of the above.

trig

5. If the angles X and Y each measure between 0° and 90°, and if sinX = cosY, what is the sum of the measures of the angles X and Y?

trig

How do I solve.... Tan 2(theta) - Cos 4(theta) = 0 Domain: (0-360 degrees) Thank you.

Math/Trig

Which logarithmic equation is equivalent to L^m = E 1) LogL E = m 2) logE L = m 3) logm E= L 4) logE m= L

trig

solve the equation of the domain 0¡Ü¦È¡Ü2¦Ð 3cos^2theta - 5costheta -1 = 3sin^2theta

trig

given cot-A square root of 5, find cot-B at the 4th quadrant.

TRIG

Given that tanx = 1/sqr(15) and secx -4/sqr(15) find the value of sinx

trig

if tan x= 4/3 and pip < x < 3pi/2, and cot y= -5/12 with 3pi/2 < y < 2pi find sin(x-y)

Trig

True or False: For a one-to-one function, y = f(x),then x = F^-1(y). Explain your answer. Please help.

Precalculus with Trig

Rewrite the following expression as an algebraic expression in x: cos(arcsin(x))

trig

PROVE: Cos 2theta = .5 (cot theta - tan theta) Please help me

math trig

a triangle abc has a mearsure of an adjacent 15 and 25 degree solve for the triangle

Pre-Calc/Trig...

Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=x^2+7

Pre-Calc/Trig...

Explain how the graph of the given function is a transformation of the graph of y=x^2 *y=(x+5)^2

Pre-Calc/Trig

How would I solve this one? I just can't get this one. 6x^2+11x-35=0

trig

solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b

trig

A road has a 10% grade (slope). To the nearest degree what is the angle of elevation of the road?

Trig

Find the algebraic expression that is equal to sec theta - cos (-theta)

Trig

Find sin(x+y), cos(x-y), tan(x+y), and the quadrant of (x+y) if sinx= -1/4, cosy= -4/5, with x and y in quadrant 3.

Math (Trig) lowering powers

If cos^4(3x)-sin^4(3x)=cos(g(x)) then g(x)=? Use a^4-b^4=(a^2-b^2)(a^2+b^2)! thanks in advance for any help!

trig

if sec theta =sqrt -20/3 state the exact value of tan theta

Math (Trig)

Solve the equation for exact values of x. sin(x) = 1-2(sin(x))^2

simplyfying expressions (trig)

can anyone tell me how to do this? thanks! (sin (x) / 1 + cos (x) ) + ( cot (x) / 1 + cos (x) )

Algebra II/Trig

Simplify: 1/5(-5a^2b^3)^2(abc)^4 How do you simplify this. How does the "-5" play a role in this? how would you get 1/5 of "-5"

Trig Proofs

Please solve this proof Tan(pi/4 +x)+ Tan(pi/4+x)= 2Sec2x

11th grade Algebra 2/ Trig

The expression log 10^(x+2)- log 10^x is equivalent to???

trig

unsure how to find phase shift,vertical shift of y=-2cos(x+3.14/4)+5

trig

determine the coterminal angle between -360 and 360 for -540

trig

How do you find the exact values of sin(u/2), cos(u/2), and tan(u/2) of tan(u)=-5/8

trig

How do you convert polar coordinates to Cartesian coordinates? And vise versa.

trig

tan(theta)=(7/24), sin(theta)<0 find cos(2theta)

Trig

Tan theta 12/5 ,pi <theta<3pi/2 Find sin 2theta

trig

If cscx=2 and x greater 90 degrees and x less than 180 degrees, then sin x/2 =

trig

Plot the point and then find three representation of the point (3,2pi/3)

trig

Suppose that sin x = 1/5 and cos y = 2/3, and x and y are each angles in Quadrant 1. Determine sin(x+y).

trig

let sin theta = -7/25 with theta in QIV find sec (2theta)

trig

True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.

trig

angle x lies in quadrant 3 and cos(x)=-.6. Find cos(3pi/2-x)

trig

an angle 30 with the distace of 24km and an angle of elevation of 45 with the distance of 15km.

trig

how do you solve 2nd cos 6/11 (my calculator doesn't have 2nd function0

trig

Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α

trig

Find sin(2theta) if tan of theta = 7/24, pi < theta < 3pi/2 ?

trig

Derive the identity 1 + cot ^2 theta = csc^2 theta by dividing x^2 + y^2 = r^2 by y^2

trig

1.Ifg(x)=cos4x,find g'(pie/24). 2.Differentiate y=csc^2 pie*x

trig

To the nearest degree, determine the measure of <X for each value of tan X if the tan X = 0.25

Trig

Solve the equation in the given domain cos 4x + cos 2x = 0, 0<(or equal to) x < pi

trig

A and B are acute angles such that cosA =3 over 5 and cosB =12 over 13

trig

Prove that the statement is an identity: (tanx/cscx)=(1/cosx)-cosx

Trig

what quadrant is this in and please explain... sin theta < 0, cos theta > 0

trig

Please explain to me how to get this -- what quadrant tan theta < 0, sin theta < 0 is in.

trig

Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25

trig

If csc theta = 2, then what is theta approximated to 4 decimal points? RADIANS

math/cal/trig solve for t

solve for t: 0=4sin(2t)cos(2t)-sin(2t)

trig

If sec theta = radical 5, what is the exact value of cos theta

trig

If sec theta = radical 5, what is the exact value of cos theta

trig

find the single term of cos^2 4theta - sin^2 4theta

Precalc/Trig

Find all values of x, 0<x<(pi/2) for which (1/( root 3))<cotx<(root 3)

trig

Find the Opposite of the right angle where the angle is 61 degrees and the Adjacent is 10 cm.?

Trig

The point P(3, 4) is on the terminal side of θ. Evaluate tan θ. 3/4 3/5 4/3 4/5

Trig

How do I prove that tan(x/2) =( plus/minus) sqrt(1-cos(x/1+cos(x))

Trig

Simplify (sin^2)*(67.5deg) - (cos^2)*(67.5deg) and then evaluate exactly.

Trig

Verify that each trigometric equation is an identity. 1/1-sinx + 1/1+sinx = 2 sec^2x

Advanced Functions/Trig

Prove the identity: cos^4 x + sin^4 x = 1 - (1/2)sin^2 (2x)

trig, math

In a right triangle with g the right angle, b = 86.5 and c = 125.8. What is β ?

trig

Find all solutions in the interval [0,2pi]. sin 2x + sin x = 0

math trig

a triangle has a measured of hypoteneuos 15 and an adjacent of 10 solve for the triangle.

Trig

Given sin x = 5/13 and 0 < x < pi/2 find the value of sin(π − x). 12/13 5/13 -12/13 -5/13

Pre-Calc/Trig...

Help me please. Simplify 1. √-36 2. -√-625

trig

If each leg has length 5 meters, what are the lengths of the other leg and the hypotenuse

Trig

Solve for t algebraically: inverse cos(t) = inverse sin(t). Where do I start?

Trig

Is a triangle that has sides which measure 8, 15, and 17 a right triangle? Justify your answer, ie,

trig

sin2piex-cos5piex Is this a sinusoid? No. because 2 pie x and 5 pie x are not the same/equal.?

math

Trig Identities prove sinx+1 \ 1-sinx = (tanx+secx)^2

trig

convert 80 degrees into radians 80 deg *2PI rad/360 deg = ?

Trig

Find the area of ABC if A=56 degrees, b=20ft, and c=12ft. 1/2(20)(12)sin56 1/2(240)sin56 99.5

Trig

Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (x=theta BTW)

trig

If sinx = -3/5, tan x > 0, sec y = -13/5 and cot y < 0, find the following: a. csc(x + y) b. sec (x - y) How do I get the answers of a. -65/33 b. -65/16 Thank you

trig - identies

Assume that A and B are in standard position and that sin A = 1/2, cos A >0, tan B = 3/4, and sinB<0 Cos (A-B)

Trigonometry

Can you please help me solve this trig equation for 0 ≤ x ≤ 2π? 9sin^2(x)-6cos(x)-10=0 Thank you!

Trig

Rules of Logarithms: Can someone explain how to do: 1) e^(2(ln)(x)) 2) e^(-lnx) I know the rules I just don't understand how they apply.. thanks!

trig

1/sinx = sinx+cosxcotx it's a proof and I have to make them equal to each other. Please help!

Trig Proofs

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

trig

Given that sin(5x-28)degree=cos(3x-5),0 lessthan x lessthan 90degree,find the value of x.

trig

find the fundamental solution set (FSS) for(cos2θ)(tanθ+1)=0

Trig

Given that tan(pi/2) = a. Express tan(x) and sin(x) in terms of a. Hint: Use the fact that x = 2.(pi/2)

trig

given that tan(x/2)=a. Express tan(x) and sin(x) in terms of a. Hint: use that fact that x= 2*(x/2)

TRIG

Use the cofunction of a complementary angle. PLEASE HELP ME! tan θ = cot (30° + 5θ)

Trig.

In right triangle ABC, C is the right angle and sinA=(radical 3/2). What is the value of csc B?

Pre- cal Trig

2cos^2x=cosx. Can you subtract the cos from cos^2? Or what would i have to do?

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