3.-9 real number system
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
The value of cosx ranges from -1 to 1, so -cosx ranges from 1 to -1.
The minimum value is -1, and the maximum value is +1.
The number 8 in the argument does not affect the amplitude of the wave. It affects only the frequency.
In the diagram, both y = -cos8x (purple) and y = -cosx (black) range from -1 to +1, but the purple cosine curve has eight times the frequency of the black one.
