Advertisements
Advertisements
Question
If a = – 1, b = 2, then find the value of the following:
ab ÷ ba
Sum
Advertisements
Solution
Given, ab ÷ ba
If a = –1 and b = 2,
Then (–1)2 ÷ (2)–1 ...`[∵ a^-m = 1/a^m]`
= `1 ÷ 1/2^1`
= 1 × 2
= 2
shaalaa.com
Is there an error in this question or solution?
Chapter 8: Exponents and Powers - Exercise [Page 274]
APPEARS IN
RELATED QUESTIONS
Simplify :
(– 4)5 × (– 4)-10
The value of `1/4^-2` is ______.
The value of `(2/5)^-2` is ______.
329.25 = 3 × 102 + 2 × 101 + 9 × 100 + 2 × 10–1 + 5 × 10–2
(–5)–2 × (–5)–3 = (–5)–6
Solve the following:
100–10
By what number should `((-3)/2)^-3` be divided so that the quotient may be `(4/27)^-2`?
Find the value of n.
`6^n/6^-2 = 6^3`
An electron’s mass is approximately 9.1093826 × 10–31 kilograms. What is this mass in grams?
If possible, find a hook-up of prime base number machine that will do the same work as the given stretching machine. Do not use (× 1) machines.
