১৩৭৮১
The highest common factor (HCF) of x2 - 1, x4 - 1 and x4 - x3 + x - 1 is
উত্তর
x2 - 1
১৩৭৮৩
If a ladder touches the roof of a wall and makes an angle of 30° with the 15 metre long wall, then the length of the ladder is-
উত্তর
17.3 m
১৩৭৮৪
If you write down all the numbers from 1 to 100, then how many times do you write 5?
উত্তর
20
১৩৭৮৯
The formula b + (x/a) = c is rearranged to make x the subject. What is x?
উত্তর
a(c - b)