A and B are two sets and numbers of elements ate as shown in the Venn diagram. Given that
n(A) = n(B), calculate (a) x (b) n(A∪B)
2.A ,B and C are three sets and the number of elements are shown in the Venn diagram. Given
that the universal set S = A∪B∪C and n(S) = 34, find (a) the value of x (b) n(A∩B∩C^' ).
- S= {x\x is an integer, 1≤x≤10}, A = {x\x – 1 ≥3}, B = {x\8<4x<30}.
List the elements of sets S,A,B.
Verify (a) (A∪B)´ = A´∩B´ (b) (A∩B)´ =A´∩ B´
- S = {2,3,4,5,6,7,8,9,10,11}, A = {x\x is a factor of 18}, B = {x\3x – 1 > 20}.
hp is equal to …..erg s-1.
- One mega watt is equivalent to ……… watt.
- If the work done in 9s is 63 J, the power is ……. .
- There are …….. W in 1 hp.
- 1 kW power is ……… than 1 hp.
- The unit watt is the same as …… .
- The unit one joule per second is equivalent to ……… .
- The mechanical advantage of a machine depends on the ………. present.
- Mechanical advantage is the ratio of the …… to the effort.
- The velocity ratio is usually much greater than ………. .
- If a machine is …….. the mechanical advantage will be equal to the velocity ratio.
26.The ability to retain the original form is called
