List different types of gears, explain the fundamental law of gearing, explain the spur gear terminology.

The basic law of gearing says that the angular speed ratio of a gear unit should stay static throughout the mesh

Explanation:

The different types of gear are:

1) spur gears

2) helical gears

3) rack and pinion

4) bevel gears

5) miter gears

6) worm and worm gears

7) screw gears

8) internal gears

the fundamental law of bearing - The basic law of gearing says that the angular speed ratio of a gear unit should stay static throughout the mesh

spur gears - Spur gears are part of the parallel shaft gear unit and are cylindrical gears with a straight, parallel rod tooth row. Spur gears seem to be the most commonly used gears with comparatively simple manufacturing procedures that can attain high precision

x+2 because it just doubles hon so the pattern can actually tell you the expression.

so for example,

if x=2 then 2+2 is 4

if x=4 then 4+4 is 8

and so on and so forth.

i really hope that this makes sense and you out in a way hon: )