Math, asked by 77479, 10 months ago

please solve this probkem

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Answered by ravi901

1

Answer:

sin⁴x+sin²x=1

(1-cos²x)²+(1-cos²x)=1

1+cos⁴x-2cos²x+1-cos²x=1

cos⁴x-3cos²x+1=0

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