The value of `((30), (0))((30), (10))-((30), (1))((30),( 11)) +(30 2)(30 12)++(30 20)(30 30)=` `^60 C 20` b. `^30 C 10` c. `^60 C 30` d. `^40 C 30`

({:(30),(0):})({:(30),(10):})-({:(30),(1):})({:(30),(11):}) + ... + ({:(30),(20):})({:(30),(30):}) is equal to

The value of (30,0)(30,10)-(30,1)(30,11)+(30,2)(30,11)-.........+(30,20)(30,30), where (n,r)=nC_(r) is a.(30,10) b.(30,15) c.(60,30)d.(31,10)

What is the value of (sin30^(@)+cos30^(@))/(cos30^(@)-sin30^(@)) ?

6, 13, 18, 25, 30, 37, 40 (a) 25 (b) 30 (c) 37 (d) 40

The value of (sin 30 + cos 30)-(sin 60 + cos 60) is

In Figure,the value of y is 20^(0) (b) 30^(@) (c) 45^(@) (d) 60^(@)

If the value of the sum 29(.^(30)C_(0))+28(.^(30)C_(1))+27(.^(30)C_(2))+…….+1(.^(30)C_(28))+0.(.^(30)C_(29))-(.^(30)C_(30)) is equal to K.2^(32) , then the value of K is equal to