ShinraquennnyHemry ShinraquennnyHemry

21-06-2016
Mathematics

contestada

If sin(3x+2)=cos(4x-10), what is the value of x to the nearest tenth?A. 7.6B. 12.0C. 14.0D. 26.9

Respuesta :

Ckaranja Ckaranja

03-07-2016

For a complimentary pair of angles i.e a+b=90 degrees, then cos a= sin b
so;
3x+2=4x-10
2+10=4x-3x
x=12.0

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