If ( x- 3 )/5 - 2 = -1 , then x is equal to ( a ) 8 ( b) 3 ( c ) -7 ( d ) 2

If (2)/(2+(2)/(2+(2)/(x)))=3, then x is equal to -(4)/(7) (b) (4)/(7)(c)-(4)/(9)(d)(4)/(9)

If A={5,6,7} and B={7,8,9} then A uu B is equal to a) {5,6,7,8,9} b) {5,6,7} c) {7,8,9} d) None of these

If A:B=3:4,B:C=5:7 and C:D=8:9 then A:D is equal to

If th term in the expansion of (2x^(2)-(1)/(x))^(12) is without x then r is equal to a.7 b.8 c.9d .

If |{:(x-1, 5x, 7), ( x ^(2) -1, x -1, 8),( 2x, 3x, 0):}|=a x ^(3) + bx ^(2) + cx +d, then c is equal to

If A=(3,5,7,8) and B=(7,8,9,10), then Find the value of (AcupB)-(AcapB) . The following are the steps involved in solving the above problem. Arrange them in sequential order. (A) AcupB=(3,5,,8,9,10) and A capB=(7,8) (B) Given A=(3,5,7,8) and B=(7,8,9,10) (C) (AcupB)-(AcapB)=(3,5,9,10) (D) (AcupB)-(AcapB)=(3,5,7,8,9,10)-(7,8) .

If a,b are roots of 3x^(2)-4x-2=0, then value of 3a^(2)+7b-(2)/(b) is equal to (a) (16)/(3) (b) (34)/(3)(c)(17)/(5)(d)(28)/(5)