6хквадрат-89ху+150х-2225у
Если ㏒_b (a) =1/3, то ㏒ₐ b = 3
㏒ₐ(a¹²b¹³)= ㏒ₐa¹²+㏒ₐ b¹³ = 12㏒ₐ a + 13㏒ₐ b= 12*1+13 *3=12+39 = 51
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если ㏒ₐ √b = ㏒ₐ b ¹/₂= 1/2*㏒ₐ b ; 1/2 ㏒ₐ b =6/10 ,то 1/2㏒_b (a) = 1/2*10/6
㏒_b(a⁶*b⁹⁹)=㏒_b (a⁶) + ㏒_b(b⁹⁹) = 6*㏒_b (a) + 99*1 = 6*(1/2)*(10/6) +99 =
=5+99=104
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если ㏒_b(a¹/₆)=1/6*㏒_b(a)=7.то ㏒_b(a)=7:1/6 =42
㏒_b(⁴√a* ⁵√b) = ㏒_b(⁴√a) + ㏒_b(⁵√b) = ㏒_b(a¹/⁴)+㏒_b(b¹/₅) =
= 1/4㏒_b(a )+ 1/5 ㏒_b(b ) =1/4 *42+1/5= 10.5+0.2=10 .7
(2,856:1,4-24):(-0,9):1,2=(2,04-24):(-0,9):1,2=
=-21,96:(-0,9):1,2=24,4:1,2=20,33
Решение
tgx = 1/2
x = arctg(1/2) + πn, n∈Z
<span> 4t^2−(t+p)^2= (2t-(t+p))(2t+t+p)=(2t-t-p)(3t+p)=(t-p)(3t+p)</span>