The value of `4-1/2` is
`(A) 1/2`
`(B) 5/2`
`(C) 7/2`
`(D) 9/2`

Find the value of ( -1/2 )^5 / ( -1/2 )^4 ÷ ( ( -1/8 ) )/( (-1/4 ) ) is ( A ) 2 ( B ) 0 ( C ) 1 ( D ) -1

If (1-tan^(2)36^(@))/(2)=sqrt(a)-sqrt(b) ,then the value of (a+b) is equal to (a,b in N) (A)5 (B) 9 (C) 7 (D)None of these

If the rank of the matrix [[-1,2,5],[2,-4,a-4],[1,-2,a+1]] is 1 then the value of a is (A) -1 (B) 2 (C) -6 (D) 4

Find the value of (-9/5 +( -8/5 ) ÷ 5/2 times (-5/4 ) ) (a) -1 (b) -3 (c) 2 (d) -8

If A=[(2,3),(5,-2)] then 9A^-1 is equal to (A) A\' (B) 2A (C) 1/2 A (D) A

If the tangents drawn through the point (1, 2 sqrt(3) to the ellipse x^2/9 + y^2/b^2 = 1 are at right angles, then the value of b is (A) 1 (B) -1 (C) 2 (D) 4

Find the value of (( 2^0 + 1)/ 5^0 ) is ( a ) 2 ( b ) 1 ( c ) ( 2/5 ) ( d ) ( 3/5 )

The additive inverse of 5/9 is: (a) 9/5 (b) 1/2 (c) 2/3 (d) (-5)/9

Find the value of ( ( 1/3 )^(-2) + ( 1/4 )^(-2) ) ÷ ( 1/5 )^(-2) ( a ) 0 ( b ) -1 ( c ) 1 ( d ) 7/5

The value of (5 1/4 div 3/7 of 1/2)div (5 1/9-7 7/8 div 9 9/20)xx11/21-(5 div 2 of 1/2) is: (5 1/4 div 3/7 of 1/2)div (5 1/9-7 7/8 div 9 9/20)xx11/21-(5 div 2 of 1/2) का मान ज्ञात करे।