Chapter 12 – Exponents and Powers
7. Simplify. (i) 25 x t^4/ 5^3 x 10 x t^-8 (t is not equal to 0)
12
Oct
7. Simplify. (i) 25 x t^4/ 5^3 x 10 x t^-8 (t is not equal to 0) 7. Simplify. (i) 25 x t^4/ 5^3 x 10 x t^-8 (t is not equal to 0) October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
6. Evaluate (ii) 5/8^-7 x 8/5^-4
12
Oct
6. Evaluate (ii) 5/8^-7 x 8/5^-4 6. Evaluate (ii) 5/8^-7 x 8/5^-4 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
6. Evaluate (i) (1/3^-1 – 1/4^-1)^-1
12
Oct
6. Evaluate (i) (1/3^-1 – 1/4^-1)^-1 6. Evaluate (i) (1/3^-1 - 1/4^-1)^-1 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
5. Find the value of m for which 5m ÷ 5^-3 = 5^5.
12
Oct
5. Find the value of m for which 5m ÷ 5^-3 = 5^5. 5. Find the value of m for which 5m ÷ 5^-3 = 5^5. October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
4. Evaluate. (ii) (5^-1×2^-2)×6^-1
12
Oct
4. Evaluate. (ii) (5^-1×2^-2)×6^-1 4. Evaluate. (ii) (5^-1×2^-2)×6^-1 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
4. Evaluate (i) (8^-1 × 5^3)/2^-4
12
Oct
4. Evaluate (i) (8^-1 × 5^3)/2^-4 4. Evaluate (i) (8^-1 × 5^3)/2^-4 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
3. Find the value of : (v) {(-2/3)^-2}^2
12
Oct
3. Find the value of : (v) {(-2/3)^-2}^2 3. Find the value of : (v) {(-2/3)^-2}^2 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
3. Find the value of : (iv) (3^-1 + 4^-1 + 5^-1)^0
12
Oct
3. Find the value of : (iv) (3^-1 + 4^-1 + 5^-1)^0 3. Find the value of : (iv) (3^-1 + 4^-1 + 5^-1)^0 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
3. Find the value of : (iii) (1/2)^-2 + (1/3)^-2 + (1/4)^-2
12
Oct
3. Find the value of : (iii) (1/2)^-2 + (1/3)^-2 + (1/4)^-2 3. Find the value of : (iii) (1/2)^-2 + (1/3)^-2 + (1/4)^-2 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
3. Find the value of : (ii) (2^-1 × 4^-1)÷2^– 2
12
Oct
3. Find the value of : (ii) (2^-1 × 4^-1)÷2^– 2 3. Find the value of : (ii) (2^-1 × 4^-1)÷2^– 2 October 12, 2020 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,