Объяснение:
117
1 √64 = 8 (64 = 8²)
2 ∛27 = 3 (27 = 3³)
3. = ∛8² = 4 (8 = 2³)
4. = ³ = 3³ = 27 (81 = 3⁴)
5. = 1/³ = 1/8 (16 = 2⁴)
6. =1/ ³ = 1/3³ = 1/27
118 ^ - знак степени -после него показатель степени
1. = 2^ (4/5 + 11/5)= 2^15/5 = 2³ = 8, (степень равна сумме степеней и равна 15/5)
2. = 5^ (2/7 + 5/7) = 5^ 7/7 = 5¹ = 5
3. = 9^4/6 * 9^1/6 = 9^5/6 = 3^5/3 = ∛27∛9= 3∛9
4. = 4^2/6 / 4^5/6 = 1/ 4^3/6 = 1/√4 = 1/2
5. = 7² = 49
6. = 1/∛8 = 1/2
7. = 8^ 12/15 / 8^ 7/15 = 8^ 5/15 = ∛8 = 2
8. = 5³ = 125
119
1), = 3^4/5 * 3^6/5 = 3^ 10/5 = 3³ = 9
2) = 7^ 2/3 * 7^ 4/3 = 7² = 49
3) 144 = 12²
= √12³/√3³ = √4³ = 2³ = 8
4) = √(150/6)³ = √25³ = 5³ = 125
а) A(n) = 2 - 3 · n;
A(1) = -1
A(2) = -4
A(3) = -7
A(4) = -10
A(5) = -13
б) A(n) = 50 - 7 · n;
A(1) = 43
A(2) = 36
A(3) = 29
A(4) = 22
A(5) = 15
в) B(n) = 1 ÷ n + 1;
B(1) = 2
B(2) = 1,5
B(3) =
B(4) = 1,25
B(5) = 1,2
г) B(n) = n³
B(1) = 1
B(2) = 8
B(3) = 27
B(4) = 64
B(5) = 125
A(1) = 2 - 3 · 1 = -1
A(2) = 2 - 3 · 2 = -4
A(3) = 2 - 3 · 3 = -7
A(4) = 2 - 3 · 4 = -10
A(5) = 2 - 3 · 5 = -13
A(1) = 50 - 7 · 1 = 43
A(2) = 50 - 7 · 2 = 36
A(3) = 50 - 7 · 3 = 29
A(4) = 50 - 7 · 4 = 22
A(5) = 50 - 7 · 5 = 15
B(1) = 1 ÷ 1 + 1 = 2
B(2) = 1 ÷ 2 + 1 = 1,5
B(3) = 1 ÷ 3 + 1 =
B(4) = 1 ÷ 4 + 1 = 1,25
B(5) = 1 ÷ 5 + 1 = 1,2
B(1) = 1³ = 1
B(2) = 2³ = 8
B(3) = 3³ = 27
B(4) = 4³ = 64
B(5) = 5³ = 125
Объяснение:
117
1 √64 = 8 (64 = 8²)
2 ∛27 = 3 (27 = 3³)
3. = ∛8² = 4 (8 = 2³)
4. = ³ = 3³ = 27 (81 = 3⁴)
5. = 1/³ = 1/8 (16 = 2⁴)
6. =1/ ³ = 1/3³ = 1/27
118 ^ - знак степени -после него показатель степени
1. = 2^ (4/5 + 11/5)= 2^15/5 = 2³ = 8, (степень равна сумме степеней и равна 15/5)
2. = 5^ (2/7 + 5/7) = 5^ 7/7 = 5¹ = 5
3. = 9^4/6 * 9^1/6 = 9^5/6 = 3^5/3 = ∛27∛9= 3∛9
4. = 4^2/6 / 4^5/6 = 1/ 4^3/6 = 1/√4 = 1/2
5. = 7² = 49
6. = 1/∛8 = 1/2
7. = 8^ 12/15 / 8^ 7/15 = 8^ 5/15 = ∛8 = 2
8. = 5³ = 125
119
1), = 3^4/5 * 3^6/5 = 3^ 10/5 = 3³ = 9
2) = 7^ 2/3 * 7^ 4/3 = 7² = 49
3) 144 = 12²
= √12³/√3³ = √4³ = 2³ = 8
4) = √(150/6)³ = √25³ = 5³ = 125
а) A(n) = 2 - 3 · n;
A(1) = -1
A(2) = -4
A(3) = -7
A(4) = -10
A(5) = -13
б) A(n) = 50 - 7 · n;
A(1) = 43
A(2) = 36
A(3) = 29
A(4) = 22
A(5) = 15
в) B(n) = 1 ÷ n + 1;
B(1) = 2
B(2) = 1,5
B(3) =
B(4) = 1,25
B(5) = 1,2
г) B(n) = n³
B(1) = 1
B(2) = 8
B(3) = 27
B(4) = 64
B(5) = 125
Объяснение:
а) A(n) = 2 - 3 · n;
A(1) = 2 - 3 · 1 = -1
A(2) = 2 - 3 · 2 = -4
A(3) = 2 - 3 · 3 = -7
A(4) = 2 - 3 · 4 = -10
A(5) = 2 - 3 · 5 = -13
б) A(n) = 50 - 7 · n;
A(1) = 50 - 7 · 1 = 43
A(2) = 50 - 7 · 2 = 36
A(3) = 50 - 7 · 3 = 29
A(4) = 50 - 7 · 4 = 22
A(5) = 50 - 7 · 5 = 15
в) B(n) = 1 ÷ n + 1;
B(1) = 1 ÷ 1 + 1 = 2
B(2) = 1 ÷ 2 + 1 = 1,5
B(3) = 1 ÷ 3 + 1 =
B(4) = 1 ÷ 4 + 1 = 1,25
B(5) = 1 ÷ 5 + 1 = 1,2
г) B(n) = n³
B(1) = 1³ = 1
B(2) = 2³ = 8
B(3) = 3³ = 27
B(4) = 4³ = 64
B(5) = 5³ = 125