What is the dimension of c3 in s=cs cos(c4t)

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The dimension of c3 in the expression s = c3 cos(c4t) is determined by the requirement that both sides of the equation must have the same dimensions. Given that s represents a distance with unit L (length), and cos(c4t) is dimensionless, c3 must also have the dimension of length [L]. Therefore, c3 has the dimension [L], ensuring dimensional consistency in the equation.

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Find the dimension for the quantity c3 in the expression s=c3 cos (c4t). Please someone help me solve this, s is a distance with unit L, t is a time with unit T and theta is an angle in radians.
 
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The dimensions must be the same on both sides of a valid equation.
Left side you just have [L] Length.
Right side: cos(anything) is dimensionless, leaving just c3.
 


Thanks
 

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