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NDA Math Logarithmic Functions
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© examsnet.com
Question : 9
Total: 16
What is the value of
log
7
log
7
√
7
√
7
√
7
equal to ?
[NDA II 2018]
3
log
2
7
1
−
3
log
2
7
1
−
3
log
7
2
7
8
Validate
Solution:
√
7
√
7
√
7
=
7
1
2
⋅
7
1
4
⋅
7
1
8
=
7
7
8
log
7
log
7
(
7
7
8
)
=
log
7
(
7
8
)
=
log
7
7
−
log
7
2
3
=
1
−
3
log
7
2
© examsnet.com
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