The cosecant is the reciprocal of the sine. The cotangent is the reciprocal of the tangent. The secant is the reciprocal of the cosine. If you have sin x = 3/5, then csc x = 5/3.
The actual fuel used by the IRL is a blend of about 98 percent ethanol and 2 percent denaturant. The exact composition includes a small amount of high-octane racing fuel. The fuel for today's Indy cars has an octane rating of 113, compared with methanol's 107. This means a significant reduction in pre-ignition, or knocking and pinging. In addition, many of the people who handle the fuel, say it smells like tequila.
Significance. The carburetor jet provides fuel to the carburetor, which then provides a carefully balanced mix of fuel and air to the cylinders. A spark from the spark plugs ignites the mix of fuel and air.The explosion pushes a piston out of the cylinder, forcing it to turn the crankshaft. carburetor jet that draws too much fuel can cause several problems. Excess fuel in the engine reduces fuel efficiency. In addition, it can reduce the life span of an engine by causing wear on engine parts.