### Proving the identity of an equation using double angle formulas

I need to prove the following identity without using the quotient identity: sin(2x)/cos(2x) = 2tan(x)/1-tan²(x) I need to use the double angle formulas for sine and cosine

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I need to prove the following identity without using the quotient identity: sin(2x)/cos(2x) = 2tan(x)/1-tan²(x) I need to use the double angle formulas for sine and cosine

Find the circumference of a circle with a diameter of 6cm. Round the answer to the nearest whole number.

Construction- To construct two angles the same measurement Please construct the following. Please make it large enough. not very small thank you Step1. Draw an acute angle. Label the vertex P. Step 2. Use a straightedge to draw a ray on your paper. Label the endpoint T. Step 3. With P as the center , draw a large arc

A beverage is sold in bottles that are 7 inches high and 2 inches at the base. The bottles are packed 12 to a case (2 rows and 6 bottles to a row). The case is made of 1/8 inch thick corregated cardboard with 1/16-inch cardboard dividers. An extra layer of 1/8-inch cardboard is placed on the bottom for a cushion. What are the di

You work in a goblet factory.A client has ordered 240 goblets. You must pack each goblet in individual boxes before placing them in containers for shipmnt. The measurements foe each box is 3inx6inx6in. The shipping container is made of cardboard 1/8-inch thick.No spacers are needed. What are the dimensions of the containers if

1) A double reflection over two intersecting lines is the same as a single_____. 2)A double reflection over two parallel lines is the same as a single ______. Given the ordered pair (-3,5), give the coordinates of its image after each of the following tranformations: 1) A reflection over the line y=x _______ 2) A ref

A) Reals with the "usual topology." Is there a way to prove this space is normal other than just saying it is normal because every metric space is normal? b) Reals with the "K-topology:" basis consists of open intervals (a,b)and sets of form (a,b) - K where K = {1, 1/2, 1/3, ... } Why connected? Why 2nd countable?

Please see the attached file for the fully formatted problems. Consider the sphere x20 + x21 + · · · + x2n = n of radius sqrt(n). Show that the normalized volume of the spherical band where a <= x0 <= b is .... Hint: 1 − x =< e^−x will be helpful at one point.

Which of the following topological spaces is normal? a) Reals with the "usual topology." b) Reals with the "finite complement topology:" U open in X if U - X is finite or is all of X. c) Reals with the "countable complement topology:" U open in X if X - U is countable or is all of X. d) Reals with the "lower limit topolog

Determine an equation for the plane tangent to the ellipsoid x^2 +2y^2 +3z^2 = 20 at the point (3,2,1) on the surface.

Please see the attached file for the fully formatted problems. 1.) Sketch 2.) Show a typical slice properly labeled 3) Write the formula for the volume of the shell generated 4) Set up the corresponding integral 5) Evaluate the integral Y = x^2 , y = 3x, about the y-axis.

Please see the attached file for the fully formatted problem. Find the volume of the solid generated when the indicated region is revolved about the specified axis. y = -x^2 + 4x, x = 3 about the x - axis

Find the center and radius of the following circle: x2 + y2 - 10x + 10y = 0

Please see the attached file for the fully formatted problems. 4. "Poisson Formula and Orthonormality". Let .... be the Fourier transform of (x) ..... With the Poisson formula one can show that the family of functions ...... is orthonormal if and only if ..... = const. PROVE or DISPROVE this claim. If the claim is true,

Q: If you have a string of Christmas lights that is 100 feet long, and, you want to hang it in the form of a rectangle that its length is twice its width or more; what is the range of the width? [Hint: This means that we need the lowest and highest values that the width can be.]

Prove or disprove: If d0 and d1 are distance functions on S, s is > or = to 0 and t > 0 then sd0 +td1 is also a distance function on S.

If a set of points P1 and P2 are convex subsets of a metric geometry, prove that P1 union P2 is convex.

If A=(4,7), B=(1,1), and C = (2,3) prove that A-C-B in the Taxicab Plane. Please help me to understand.

#26 Please see the attached file for full problem description. (a) A cylindrical drill with radius r1 is used to bore a hole through the center of a sphere of radius r2. Find the volume of the ring-shaped solid that remains. (b) Express the volume in terms of height (h).

A soft- drink cup is in the shape of a right circular cone with a capacity of 250 millilitres. The radius of the circular base is five centimetres. How deep is the cup? (1 millilitre = 1 cubic centimetre). (Explain your answer).

In the taxi-cab plane show that ifA=(-5/2,2),B=(1/2,2), C=(2,2), P=(0,0), Q=(2,1) and R=(3,3/2)then A-B-C and P-Q-R. Show that line segment AB~to line segment PQ,line segment BC~line segmentQR, line segment AC~line segment PR. Sketch an appropriate picture.

Problem 1 Find the equation of the tangent plane to the central conicoid x2 - 4y2 + 3z2 + 2 = 0 at the point (1,2,0). Problem 2 Find whether the plane 2x + 3y + 2z =3 touches the central conicoid 2x2 + 3y2 + z2 = 1 or not.

Information is given about a circle in the following table. Fill in the missing entries of the table, and show how you come up with the answer. r=radius, d=diameter,C= circumference,A=area. Give answers to two decimal places. r d C A 231.04(symbol is pi)

Given the following measures of a vertex angle of a regular polygon, determine how many sides it has? a. 150 degrees b. 156 degrees c. 174 degrees d. 178 degrees

$_n$_m((x,y))= (x+6,y-3). Find equations for lines m and n. note: $_a is a reflection about line a

Show $_p*$_l*$_p*$_l*$_p*$_l*$_p is a reflection in a line parallel to line l note $_p is a reflection about the line p

Phase angle 15.18 degrees. What is this value in radians?

A circular well is 5 feet in diameter. What is the circumference of the circular plastic cover that fits exactly over the well (to the nearest hunderedth)

Find the volume of the ellipsoid formed by rotating the semi-ellipse (see attached word file) about the x axis.

A)Find the center of mass with constant density of the region bound by y=x5, y=2-x4 and the y axis; b)Rotate it about the y axis and find its volume; c) Rotate it about the x axis and find its volume.