The value of det `|(a,0,0,0),(2,b,0,0),(4,6,c,0),(6,8,10,d)| is (A) 0 (B) `a+b+c+d` (C) `abcd` (D) none of these

The value of the determinant |{:(a, b,0), (0,a, b),(b,0,a):}| is equal to- a. a^3-b^3 b. a^3+b^3 c. 0 d. none of these

The value of sqrt(0.064) is (a) 0.008(b)0.08(c)0.252(d)0.8

Let A=[(0,alpha),(0,0)] and (A+1)^(50)=50 A=[(a,b),(c,d)] Then the value of a+b+c+d is (A) 2 (B) 1 (C) 4 (D) none of these

The area of the triangle formed by the point A(2,0),B(6,0) and C(4,6) is 24 squnits (b) 12 squnits 10 squnits (d) none of these

The value of sqrt(0.4) is (a) 0.02 (b) 0.2 (c) 0.51 (d) 0.63

(1.6xx3.2)/(0.08)=?( a) 0.8(b)6.4(c)8(d)64(d) None of these

The value of sqrt((0.16)/(0.4)) is (a) 0.02(b)0.2(c)0.63 (d) None of these

If the points (a,0),(b,0),(0,c), and (0,d) are concyclic (a,b,c,d>0), then prove that ab=cd.

sqrt((.0196)/(?))=0.2( a) 0.49( b) 0.7(c)4.9(d) None of these

If the vertex of square OABC are O(0,0),A(a, b),B(8,-6),C(c,d) then |a|+|b|=