Answer:
C, D
Step-by-step explanation:
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C I need to put 20 letters so yea the answer is C
Answer:
Step-by-step explanation:
cos x=sin 2x
sin 2x-cos x=0
2 sin x cos x-cos x=0
cos x(2 sin x-1)=0
either cos x=0

or
2 sin x-1=0

A function represents a direct variation if the ratio between the output values and input values is constant. If two quantities vary directly, the points on a graph form a straight line, and the line runs through the origin.
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Those number are all powers of 10
10= 10^1
100= 10^2
1000= 10^3
and so on...