Question

1/4 ^{-2}-1/2 ^{-4}\div 1/4 ^{-2}
simplify

Answer 1

Answer:

Step-by-step explanation:

We have,

(2 −1×4 −1 )÷2 −2

=(

2

1

​

×

4

1

​

)÷

2

2

1

​

=(

8

1

​

)÷

4

1

​

=

4

1 81= 84= 21

​

Hence, this is the answer.

Answer 2

$= ( \frac{1}{4} ) {}^{ - 2} \: - ( \frac{1}{2} ) {}^{ - 4} \: \div \: ( \frac{1}{4} ) {}^{ - 2} \\ \\ = \frac{1}{16} - \frac{1}{16} \div \frac{1}{16} \\ \\ = \frac{1}{16} - \frac{1}{16} \times \frac{16}{1} \\ \\ = \frac{1}{16} - \frac{1}{1} \\ \\ = \frac{1 - 16}{16} \\ \\ = \frac{ - 15}{16}$