If anyone can help me with these two questions I would appreciate it. Thank you!
Trig. question:
"The expression $\displaystyle [2cos(theta)/sin2(theta)]$ is equivalent to...?
Choices:
(1) [csc theta]
(2) [sec theta]
(3) [cot theta]
(4) [sin theta]
Work done so far:
$\displaystyle [Cos2 theta/Sin2 theta] = [1-sin^2 theta/1-cos^2 theta] $
...where to go from here?
Sin Wave Question:
"A student attaches one end of a rope to a wall at a fixed point 3 feet above the ground, as shown in the accompanying diagram, and moves the other end of the rope up and down, producing a wave described by the equation $\displaystyle y = a sin bx + c$. The range of the rope’s height above the ground is between 1 and 5 feet. The period of the wave is
$\displaystyle [4(pie symbol)]$. Write the equation that represents this wave."
Work done so far:
Amp.= 3
Freq.= 2
Range=...5?
Equation: 3 sin 2x +
...?
Side Note: I'm new to using "LaTex"...