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Chapter 9: Q 449. (page 1124)

Simplify:

(a) -5123

(b)role="math" localid="1650565978180" -814

(c) role="math" localid="1650565987001" -15

Short Answer

Expert verified

(a) -5123=-8

(b) localid="1650992552657" -814=Not a real number

(c)localid="1650565946762" -15=-1

Step by step solution

01

Part (a) Step 1: Given Information

The given expression is-5123

02

Part (a) Step 2: Simplification

As -512=-83

Expression becomes -833

Simplifying gives-8

03

Part (b) Step 1: Given Information

The given expression is-814.

04

Part (b) Step 2: Simplification

As there is no real number whose fourth power is -81.

Hence there is no real number.

05

Part (c) Step 1: Given Information

The given expression is-15.

06

Part (c) Step 2: Simplification

As -1=-15

Expression becomes -155

Simplifying gives-1

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