Advertisements
Advertisements
Question
If a = 3 and b = 2, then find the value of the following.
(a – b)a
Sum
Advertisements
Solution
(a – b)a
Substituting a = 3 and b = 2
we get (3 – 2)3
= 13
= 1 × 1 × 1
= 1
shaalaa.com
Unit Digit of Numbers in Exponential Form
Is there an error in this question or solution?
Chapter 3: Algebra - Exercise 3.1 [Page 52]
APPEARS IN
RELATED QUESTIONS
If a = 3 and b = 2, then find the value of the following.
ab + ba
If a = 3 and b = 2, then find the value of the following.
(a + b)b
Match the following:
| Group A Exponential form |
Group B Unit digit of the number |
| (i) 2010 | (a) 6 |
| (ii) 12111 | (b) 4 |
| (iii) 44441 | (c) 0 |
| (iv) 25100 | (d) 1 |
| (v) 71683 | (e) 9 |
| (vi) 729725 | (f) 5 |
Find the unit digit of expanded form.
1110
Find the unit digit of expanded form.
4615
Find the unit digit of expanded form.
3416
Find the unit digit of the following numeric expression.
11420 + 11521 + 11622
Observe the equation (10 + y)4 = 50625 and find the value of y
The unit digit of the numeric expression 1071 + 1072 + 1073 is
Find the unit digit of the numeric expression: 1623 + 7148 + 5961
