express as a rational number 7^-2×(1/14)^-1
Answers
Answered by
0
Answer:
We have,
(
3
4
)
−1
=(
4
3
)
1
[∵(a/b)
−n
=(b/a)
n
]
Similarly,
(
4
1
)
−1
=(
1
4
)
1
∴{(
3
4
)
−1
−(
4
1
)
−1
}
−1
={(
4
3
)−(
1
4
)}
−1
=(
4
(3−16)
)
−1
[∵LCM of 4 and 1 is 4]
=(
4
−13
)
−1
=(
13
−4
) [∵(a/b)
−n
=(b/a)
n
]
Hence the answer is (−4/13)
Answered by
1
Answer:
7^-2 * 1/14^-1
(1/49)*14=2/7
Step-by-step explanation:
answer=2/7
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