Question

can somebody help me?
Mathematics STD 9 NCERT
i will mark you the BRAINLIEST ​

Answer 1

Answer:

f o l l . o w me

Step-by-step explanation:

1.b

2.a

3.d

4.c

Answer 2

Answer:

$1. \: {7}^{ - 1} = \frac{1}{ {7}^{1} } = \frac{1}{7}$

So 1. → (b)

$2. \: {7}^{0} = 1$

So 2. → (a)

$3. \: {7}^{1} = 7$

So 3. → (d)

$4. \: ( {7}^{1}) ^{2} = {7}^{1 \times 2} = {7}^{2}$

So 4. → (c)