Help i need to know what cos6x equals

[gravy3000]

what does cos6x equal? I have a bigger question but i am sure i can get it if i know what this equals it is actually sin6x=4cos6x

[Math Tutor]

Could you write the equation, please.

[adeypeter]

sin6x=4cos6x
Divide both sides by co6x
sin6x/cos6x=4
Do not forget that whenever the sine function divides the cosine function, it would yield the tangent function
Hence we have,
tan6x=4
Therefore
6x=arc tan(4),
6x=75.963
x=75.963/4
x=18.99

[adeypeter]

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[Marinda]

It is common to come across the terms "domain" and "range" when talking about functions. The first set in a functional relationship is called the domain and the second set is called the range. The notation f:X->Y is the symbolism which stands for the function from set X (the domain) to set Y (the range). The letters X and Y are often replaced by other characters, and it is not uncommon to use the letters g, H, and z for functions. As mentioned previously, X and Y are most common in functional notation because of convention in naming the axes in a coordinate plane by using these letters.

[Guest]

question: sin6x=4cos6x
solution: sin6x/cos6x=4cos6x/cos6x
tan6x=4
6x=arctan(4)
6x=75.963
x=75.963/4
x=18.99
if you want more explanation about the problem then try onlie math help.