Find `5C_2`

Find 5C_0

Find 6C_2

If A={1,2,3,4}, B={2,3,4,5},C={1,3,4,5,6,7}. Find A-C and hence verify that, A-(BcapC)=(A-B) cup(A-C)

Let U = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = { 1, 2, 3, 4}, B = { 2, 4, 6, 8 } and C = { 3, 4, 5, 6 } . Find (A ∪ C)′

Let U = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = { 1, 2, 3, 4}, B = { 2, 4, 6, 8 } and C = { 3, 4, 5, 6 } . Find (B – C)′

Two circles C_1 and C_2 intersect in such a way that their common chord is of maximum length. The center of C_1 is (1, 2) and its radius is 3 units. The radius of C_2 is 5 units. If the slope of the common chord is 3/4, then find the center of C_2dot

Evaluate .^5C_2

Find the value of .^5 C_2

Find the sum 3 C_1 + 5C_2

Find the value of 5C_3 + 4C_2