Simplify the expression cos(pi-2x)

it is more powerful cuz it bigger

Step-by-step explanation:

to clarify The magnitude scale is logarithmic. That just means that if you add 1 to an earthquake's magnitude, you multiply the shaking by 10. An earthquake of magnitude 5 shakes 10 times as violently as an earthquake of magnitude 4; a magnitude-6 quake shakes 10 times as hard as a magnitude-5 quake; and so on.To compare two earthquakes in terms of shaking, you subtract one magnitude from the other and raise 10 to that power: 10^(M1-M2).

For example, if the magnitude of one quake is 6 and another is 4, than the difference in magnitudes is 2, so the stronger earthquake shakes 10^2 or 100 times as hard as the milder one.Fractional differences work the same way. Increase the magnitude by 0.1, and you multiply the shaking by 10^(0.1), or about 1.259—an increase of 26%. Increase the magnitude by 0.3, and the shaking almost exactly doubles. That's a handy rule of thumb to keep in mind.