Ответы на вопрос:
ответ:
tg=sin/cos cos квадрат а+ sin квадрат а=1
ctg=cos/sin
значит sin/cos+cos/sin=5
затем (sin*sin+cos*cos)/cos*sin=5
1/cos*sin=5
сos*sin=0,2
объяснение:
(x+3)2+(y−4)2=12(x+3)2+(y-4)2=12move all variables to the left side and all constants to the right side. (x+3)2+(y−4)2=12(x+3)2+(y-4)2=12this is the form of a circle. use this form to determine the center and radius of the circle. (x−h)2+(y−k)2=r2(x-h)2+(y-k)2=r2match the values in this circle to those of the standard form. the variable rr represents the radius of the circle, hh represents the x-offset from the origin, and kk represents the y-offset from origin. r=2√3r=23 h=−3h=-3 k=4k=4the center of the circle is found at (h,k)(h,k).center: (−3,,4)these values represent the important values for graphing and analyzing a circle.center: (−3,,4)radius: 2√3
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