1) -2/3 х^3 y^7 z^2;
2) -x^24 y^18;
3) -a b^10 c;
1. ∛(5*25*27) = ∛(5*(5²)*(3³)) = ∛((5³)*3³) = ∛(5³) * ∛(3³) =5*3=15
2. -22sin390° =-22sin(360°+30°)=-22sin30°=-22 * (1/2)=-11
3.<u> (9⁻⁴)² </u>=<u> 9⁻⁸ </u>= 9⁻⁸⁺¹⁰ = 9² =81
9⁻¹⁰ 9⁻¹⁰
1) а) 3√2=√3^2+2=√11
б) 12√3=√12^2+3=√147
в) х√5=√х^2+5
2) √48>3√3 10√8 < 2√162
√48>√3^2+3 √10^2+8 < √2^2+162
√48>√12 √108 <√166
6,92....>3,46..... 10,39....< 12,88.....
<span>2*3(х+1), это степень)-3х=15</span>
<span>2*3^(x+1)-3^x=15</span>
<span>2*3^x*3-3^x=15</span>
<span>6*3^x-3^x=15</span>
<span>5*3^x=15</span>
<span>3^x=3^1</span>
<span>x=1</span>
2-
3-
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