Advertisements
Advertisements
Question
Solve the following:
2–2 × 2–3
Sum
Advertisements
Solution
2–2 × 2–3
= (2)–2 + (–3) ...[∵ am × an = am + n]
= (2)–2 – 3
= (2)–5
shaalaa.com
Is there an error in this question or solution?
Chapter 8: Exponents and Powers - Exercise [Page 257]
APPEARS IN
RELATED QUESTIONS
Simplify and write the answer in the exponential form.
(25 ÷ 28)5 × 2-5
55 × 5–5 = ______.
The value of [1–2 + 2–2 + 3–2 ] × 62 is ______.
am × bm = (ab)m
Express as a power of a rational number with negative exponent.
(25 ÷ 28) × 2–7
Fill in the blanks
For hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it.
Mass of Mars is 6.42 × 1029 kg and mass of the Sun is 1.99 × 1030 kg. What is the total mass?
Find x.
`(2/5)^(2x + 6) xx (2/5)^3 = (2/5)^(x + 2)`
Find x.
23x = 82x + 1
