Limestone is a type of rock is especially likely to form caves. The inside of a cave is usually made of
stalagmites<span>
and </span><span>
stalactites.
The picture below is limestone. That's the rock used to form caves.
Hope that helps! -UF aka Nadia</span>
To find the maximum and minimum (5,-9)
Cos(2θ) = cos²θ - sin²θ = (1-sin²θ)-sin²θ = 1-2(7/9)^2 = -17/81
It should be one but if I’m wrong I am so so sorry