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प्रश्न
What will be the units digit of the square of the following number?
55555
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उत्तर
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 5. Hence, the units digit is the last digit of 25 (25 = 52), which is 5.
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संबंधित प्रश्न
Write a Pythagorean triplet whose one member is 6.
Write a Pythagorean triplet whose one member is 16.
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 :
52 + 62 + 72 + 82 + 92 + 102 + 112 + 122
Find the squares of the following numbers using diagonal method:
295
Find the square of the following number:
127
Find a Pythagorean triplet in which one member is 12.
There are ______ natural numbers between n2 and (n + 1)2
All numbers of a pythagorean triplet are odd.
The dimensions of a rectangular field are 80 m and 18 m. Find the length of its diagonal.
Rahul walks 12 m north from his house and turns west to walk 35 m to reach his friend’s house. While returning, he walks diagonally from his friend’s house to reach back to his house. What distance did he walk while returning?
