Chapter 12 – Exponents and Powers
99. Find the value of x so that (iii) (2^–1 + 4^–1 + 6^–1 + 8^–1)^x = 1
01
Aug
99. Find the value of x so that (iii) (2^–1 + 4^–1 + 6^–1 + 8^–1)^x = 1 99. Find the value of x so that (iii) (2^–1 + 4^–1 + 6^–1 + 8^–1)^x = 1 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
99. Find the value of x so that (ii) (–2)^3 × (–2)^–6 = (–2)^2x–1
01
Aug
99. Find the value of x so that (ii) (–2)^3 × (–2)^–6 = (–2)^2x–1 99. Find the value of x so that (ii) (–2)^3 × (–2)^–6 = (–2)^2x–1 August 1, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
99. Find the value of x so that (i) (5/3)^-2 x (5/3)^-14 = (5/3)^8x
29
Jul
99. Find the value of x so that (i) (5/3)^-2 x (5/3)^-14 = (5/3)^8x 99. Find the value of x so that (i) (5/3)^-2 x (5/3)^-14 = (5/3)^8x July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
98. Simplify: (iv) (2^5 ÷ 2^8) × 2^–7
29
Jul
98. Simplify: (iv) (2^5 ÷ 2^8) × 2^–7 98. Simplify: (iv) (2^5 ÷ 2^8) × 2^–7 July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
98. Simplify: (iii) 49 x z^-3/7^-3 x 10 x z^-5 (z ≠ 0)
29
Jul
98. Simplify: (iii) 49 x z^-3/7^-3 x 10 x z^-5 (z ≠ 0) 98. Simplify: (iii) 49 x z^-3/7^-3 x 10 x z^-5 (z ≠ 0) July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
98. Simplify: (ii) {(-2/3)^-2}^3 x (1/3)^-4 x 3^-1 x 1/6
29
Jul
98. Simplify: (ii) {(-2/3)^-2}^3 x (1/3)^-4 x 3^-1 x 1/6 98. Simplify: (ii) {(-2/3)^-2}^3 x (1/3)^-4 x 3^-1 x 1/6 July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
98. Simplify: (i) (1/4)^-2 + (1/2)^-2 + (1/3)^-2
29
Jul
98. Simplify: (i) (1/4)^-2 + (1/2)^-2 + (1/3)^-2 98. Simplify: (i) (1/4)^-2 + (1/2)^-2 + (1/3)^-2 July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
97. Find the product of the cube of (–2) and the square of (+4).
29
Jul
97. Find the product of the cube of (–2) and the square of (+4). 97. Find the product of the cube of (–2) and the square of (+4). July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
96. Express as a power of a rational number with negative exponent.
29
Jul
96. Express as a power of a rational number with negative exponent. 96. Express as a power of a rational number with negative exponent. July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,
95. Express16/81 and -16/81 as powers of a rational number.
29
Jul
95. Express16/81 and -16/81 as powers of a rational number. 95. Express16/81 and -16/81 as powers of a rational number. July 29, 2021 Category: Chapter 12 - Exponents and Powers , Maths , NCERT Class 8 ,