Question

please help me I need it urgently
i will mark you as brainliest​

Answer 1

Answer:

1 / 2^2

1 / 4

0.25

Step-by-step explanation:

$\frac{(-2)^{3}*(-2)^{7}}{4^{6}}$

$\frac{(-2)^{3+7}}{2^{(2*6)}}$

$\frac{(-2)^{10}}{2^{(12)}}$

$\frac{2^{10}}{2^{12}}$

$\frac{1}{2^{2} }$

Hope it helps

Mark as brainliest

Answer 2

Question :- Simplify and express the result with positive exponent :-

• [(-2)³ × (-2)⁷] / 4⁶

Solution :-

→ [(-2)³ × (-2)⁷] / 4⁶

using a^m × a^n = a^(m + n) in numerator ,

→ (-2)^(3 + 7) / 4⁶

→ (-2)¹⁰ / 4⁶

→ (-2)¹⁰ / (2²)⁶

using (a^m)^n = a^(m × n) in denominator ,

→ (-2)¹⁰ / (2)¹²

using (a × b)^m = a^m × b^m in numerator,

→ {(-1)¹⁰ × (2)¹⁰} / (2)¹²

→ {(1 × (2)¹⁰} / (2)¹²

→ (2)¹⁰ / (2)¹²

using a^m / a^n = a^(m - n)

→ (2)^(10 - 12)

→ (2)^(-2)

using a^(-m) = (1/a^m) ,

→ (1/2²) (Ans.)

Learn more :-

if the positive square root of (√190 +√ 80) i multiplied by (√2-1) and the

product is raised to the power of four the re...

https://brainly.in/question/26618255