Mathematics: Use trigonometric identities to solve each equation within the given domain. 4cos4(x) – 5cos2(x) + 1 = 0 from [0, 2π). PLEASE SHOW WORK!!!

Use trigonometric identities to solve each equation

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rosepotato789

21.08.2021

4cos ^4(x) -5cos^2(x)+1=0(u^-1) (4u^-1)=0(u^-1)=0u^=1u=√1u=1u=±1cos (x)=±1x=0 or π4u^-1=04u^=1u^=1/4u=√1/4u=1/2u= ±1/2cos (x)=±1/2x= π/3 or 4π/3x= 0, π/3, π, 4π/3

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Ответ:

FireFlight

09.02.2022

Mathematics

She ran 6,390 miles
you multiply 710×9 which = 6,390

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Use trigonometric identities to solve each equation within the given domain. 4cos4(x) – 5cos2(x) + 1 = 0 from [0, 2π). PLEASE SHOW WORK!!!

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