Advertisements
Advertisements
Question
What will be the units digit of the square of the following number?
78367
Solution
The units digit is affected only by the last digit of the number. Hence, we only need to examine the square of its last digit.
Its last digit is 7. Hence, the units digit is the last digit of 49 (49 = 72), which is 9.
APPEARS IN
RELATED QUESTIONS
Write a Pythagorean triplet whose one member is 14.
Observe the following pattern
22 − 12 = 2 + 1
32 − 22 = 3 + 2
42 − 32 = 4 + 3
52 − 42 = 5 + 4
and find the value of
992 − 962
Observe the following pattern \[1^2 = \frac{1}{6}\left[ 1 \times \left( 1 + 1 \right) \times \left( 2 \times 1 + 1 \right) \right]\]
\[ 1^2 + 2^2 = \frac{1}{6}\left[ 2 \times \left( 2 + 1 \right) \times \left( 2 \times 2 + 1 \right) \right]\]
\[ 1^2 + 2^2 + 3^2 = \frac{1}{6}\left[ 3 \times \left( 3 + 1 \right) \times \left( 2 \times 3 + 1 \right) \right]\]
\[ 1^2 + 2^2 + 3^2 + 4^2 = \frac{1}{6}\left[ 4 \times \left( 4 + 1 \right) \times \left( 2 \times 4 + 1 \right) \right]\] and find the values :
12 + 22 + 32 + 42 + ... + 102
Which of the following number square of even number?
4489
Find the squares of the following numbers using column method. Verify the result by finding the square using the usual multiplication:
54
Find the square of the following number:
451
If m is the square of a natural number n, then n is ______.
The sides of a right triangle whose hypotenuse is 17 cm are ______ and ______.
Write the Pythagorean triplet whose one of the numbers is 4.
Find the area of a square field if its perimeter is 96 m.
