(e) 3477
(d) 425
13
(a) 3136
(b) 4096
(c) 39304
(d)
3. Write the units digit of the tubes of the following numbers:
(a) 42
(b) 144
(c) 243
Which of the following numbers are the cubes of even numbers?
d) 343
(e) 1000
Answers
Answer:
(a) 42
d) 343
Explanation:
ok buddy
yxt
Answer:
Before reading below make me brainliest
No qs for 13 i guess Qs is give reasons why a cube
Follow me to get such tricks:
A perfect cube is completely dividisible
by 3 or leaves remainder 1
☆100% working☆
Yes: a) 3136/3 gives remainder 1
b) 4046/3 gives remainder 0
c) 39304/3 gives remainder 1
d) 3477/3 gives remainder 0
not cube
e) 425/3 gives remainder 2
3
Whatever is the units place of cube of a units place of whole no.
eg) 22^3 will have units plave of 2^3 which is 8..
a 42 will have 8 at units place.
b 114 will have 6 at units place .
c 243 will have 7 at units place.
Cubes of even no.s are even and vice versa.
So 1000 is the cube of even no. as 1000 is even.