fantasyslimemakers fantasyslimemakers

24-05-2021
Mathematics

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Select one or more expressions that together represent all solutions to the equation . Your answer should be in radians . Assume n is any integer.

18cos(10x)+2=10

Select one or more expressions that together represent all solutions to the equation Your answer should be in radians Assume n is any integer 18cos10x210 class=

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abidemiokin abidemiokin

29-05-2021

Answer:

θ = 5.6251 + n*2π

Step-by-step explanation:

Given the expression

18cos(10x)+2=10

18cos(10x) = 10 -2

18cos(10x) = 8

cos(10x) = 8/18

cos(10x) = 5/9

10x = arccos(5/9)

10x = 56.251

x = 56.251/10

x = 5.6251

For cos theta

θ=cos^-1a+n*2π

θ = 5.6251 + n*2π

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