X²-1-x²+3x=0
3x-1=0
3x=1
x=1/3
Ответ: 1/3
<span>tg умножить на <span>ctg=1</span></span>
<span><span>а)1</span></span>
<span><span>Б)3</span></span>
<span><span>В)1</span></span>
<span><span>Г)7</span></span>
д)7
4^120 * 6^123 : 3 * 24^120 = 4^120 * 216^120 : 72^120 = 864^120 : 72^120 = 12^120
Y`=(4cos4x*5^3x/2√sin4x - 5^3x*3*ln5*√sin4x)/5^6x=
(2cos4x*5^3x/√sin4x - 5^3x*3*ln5*√sin4x)/5^6x=
(2cos4x*5^3x - 5^3x*3*ln5*sin4x)/5^6x*√sin4x=
5^3x(2cos4x - 3*ln5*sin4x)/5^6x*√sin4x=(2cos4x - 3*ln5*sin4x)/5^3x*√sin4x