Question
Simplify (15)−3−(13)−4(14)−3.
Answer: Option C
:
C
∵a−n=1anfora≠0
⟹(15)−3=1(15)3=(51)3=53=125
Similarly, (13)−4=1(13)4=(31)4=34=81 and
(14)−3=1(14)3=(41)3=43=64
⟹(15)−3−(13)−4(14)−3=125−8164=4464=1116
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:
C
∵a−n=1anfora≠0
⟹(15)−3=1(15)3=(51)3=53=125
Similarly, (13)−4=1(13)4=(31)4=34=81 and
(14)−3=1(14)3=(41)3=43=64
⟹(15)−3−(13)−4(14)−3=125−8164=4464=1116
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