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Chapter 9: Q 452. (page 1124)

Simplify:

(a) y44

(b)m77

Short Answer

Expert verified

(a) y44=y

(b)m77=m

Step by step solution

01

Part (a) Step 1: Given Information

The given expression isy44

02

Part (a) Step 2: Simplification

y4=y4

Since we want positive root,

y44=y

03

Part (b) Step 1: Given Information

The given expression ism77

04

Part (b) Step 2: Simplification

m7=m7

There is an odd root. So there is no need for an absolute value sign.

m77=m

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