Question

1. Which of the following is equal to x®?
a. X-X
b. XX
C. Xºlx d. (6)

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Answer 1

Answer:

C

Step-by-step explanation:

Answer :

C

Solution :

(a)x127−x57=x57+1−x57

=x57.x−x57

(b) (x4)13−−−−−√12=((x4)13)112

=x4×13×112=x19

≠x

(c)(x3−−√)23=(x23)23=x32×23

x

(d) x127×x712=x127+712

x144+4984=x19384≠x [am.an=am+n]