Sin^2*x-1,5*cosx=0 cos^2*x-2,5*sin*2*x+4cos^2*x=0 3*sinx-4*cosx=4

Question

Sin^2*x-1,5*cosx=0
cos^2*x-2,5*sin*2*x+4cos^2*x=0
3*sinx-4*cosx=4

Answer 1

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