Evaluate :
`a + 0 = `
( a ) a   ( b ) 0   ( c ) none

If A = [ [ 0 , 3 , -4 ] , [ k, 0 , 6 ] , [ 4 , -6 , 0 ] ] is skew symmetric matrix then the value of k is ( a )   -3   ( b )   3   ( c )   4   ( d )   -2

Evaluate : lim_( x -> 0 ) ( sqrt( x^2 + 1 ) -x ) = ? (a)   1   ( b )  -1   ( c )   0  

Find the value of ( 2^0 + 7^0 )/ 5^0 (a)  2  (b)  0   (c)  9/5  (d)  1/5

Find the value of ( 1+ 1/iota )^4 is : ( a )   0   ( b )  -4   ( c )   4   ( d )   3

Find the value of   [ ( x/y - 1 ) / ( 1 - x/y ) ] ( a )   0   ( b )   1   ( c )   -1   ( d )   x/y

Find the value of the following : ( a )   ( 2/3 )^5   ( b )   ( 3/4 )^4   ( d )   ( -7/8 )^2   ( c ) ( -8/9 )^2

If y - 9 = ( - 4 ) , then y is equal to : ( a )   3   ( b )   4   ( c )   5   (d )   7  

If ( 1 - iota ) x + ( 1 + iota ) y = 1 - 3 iota , then ( x ,y ) is equal to ( a )   ( 2 , -1 )   ( b )   ( -2 , 1 )   ( c )  ( -2 , -1 )  ( d )  ( 2, 1 )

If x ÷ 1 = 8 , then x is equal to ( a )   8   ( b )   1   ( c )   -8   ( d )   -1  

Evaluate : lim_( x -> 0 ) (( 1 - sqrt(1 - x^2 ) ))/ x^2 ( a ) 1/2 ( b )   2   ( c )   1   ( d )   -1