Chapter 12 Exponents and Powers

Chapter 12 Exponents and Powers

Very Short Answer Type

Question 1.
Find the multiplicative inverse of:
(i)
(ii)
Solution:

Question 2.
Expand the following using exponents.
(i) 0.0523
(ii) 32.005
Solution:

Question 3.
Simplify and write in exponential form.

Solution:

Question 4.
Simplify the following and write in exponential form.

Solution:

Question 5.
Express  as a power with the base 2.
Solution:

Question 6.
Simplify the following and write in exponential form.

Solution:

Question 7.

Question 8.
Simplify the following:

Solution:

Question 9.

Solution:

Question 10.
Write the following in standard form
(i) 0 0035
(ii) 365.05
Solution:

Short Answer Type

Question 11.
Find the value of P if

Solution:

Question 12.

Solution:

Question 13.
Find the value of x if

Solution:

⇒ 3 + x = 18 [Equating the powers of same base]
x = 18 – 3 = 15

Question 14.

Solution:

Question 15.

Solution:

Question 16.

Solution:

Question 17.