prove that (1-tan26)(1-tan266)= -4

prove that (1-tan26)(1-tan266)= -4

Solve: 2sin2x=cotx , -π ≤ x ≤ 2π

The restaurant in the Space Needle in Seattle rotates at a rate of one revolution per hour.

sin(165°)=√A((√B)-1)/4 A= B=

prove that (1-tan26)(1-tan266)= -4

prove that tan6.tan42.tan66.tan78=1

Find a positive angle less than 2piπ that is coterminal with the given angle. -pi/-150

Rewrite sin(x+(7pi)/4) in terms of sin(x) and cos(x)

Rewrite cos(x+π/4) in terms of sin(x) and cos(x)

tan(71°)-tan(11°)/1+tan(71°)tan(11°)=tan(A°)=√B A= B=

if cot theta is equal to 1/5. What is sec theta equal to?

http://www.ezimba.com/work/171119C/ezimba17728288483300.jpg Please help!

solve the equation for the solutions over the interval [0 degrees, 360 degrees) tan2x+8tanx+6=0 I am having trouble factoring and solving

A Student moves a box of books with a rope by pulling the rope with a force of 90 N at an angle of 30°. The books have a mass of 20 kg and a coefficient of friction between the box...

square ABCD is of side 1 unit and perimeter of triangle PAQ is 2 units

Find value of(1+tan theta+sec theta)(1+cot theta -cosec theta)=?

i need help with it

IF sinA-cosA=1 and sinA.cosA=0 then proe that sinA + cosA = +/- 1

I have the answer to my question but I don't know how to get the answer myself so I figure try asking here. I am given the equation 2/cot(x) - csc(x) and asked which of the following...

To determine the height of a flagpole, Richard measures the distance along the ground from the base of the flagpole to where he is standing to be 33 meters. He also measures the angle of elevation...