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Express each of the following in exponential form:
(3) 400/3969
(4) -625/10000

Solution:

We have to express each of the given terms in exponential form.

(3) 400/3969

We know, 400 = 20 × 20 = 20²

Also, 3969 = 63 × 63 = 63²

Exponential form = 20²/63²

= (20/63)²

(4) -625/10000

We know, 625 = 5 × 5 × 5 × 5 = 5⁴

Also, 10000 = 10 × 10 × 10 × 10 = 10⁴

Exponential form = -(5)⁴/10⁴

= -(5/10)⁴

= -(1/2)⁴

✦ Try This: Express each of the following in exponential form: 800/3600

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 12

NCERT Exemplar Class 8 Maths Chapter 8 Problem 179(3, 4)

Express each of the following in exponential form: (3) 400/3969, (4) -625/10000

Summary:

The exponential form of (3) 400/3969 = (20/63)², (4) -625/10000 = -(1/2)⁴

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