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 (x,3)+(2,5)=(7,8) then x is equal to a)2 b)5 c)7 d)9

If log_(x)((9)/(16))=-(1)/(2), then x is equal to a.-(3)/(4) b.(3)/(4) c.(81)/(256)d.(256)/(81)

lim_(x->0) (1-cos x cos 2x cos 3x)/ (sin^2 2x) is equal to a) 3/4 b) 7/4 c) 7/2 d) -3/4

If (2a+b)/(a+4b)=3, then find the value of (a+b)/(a+2b)*(2)/(7)(b)(5)/(9)(c)(10)/(7)(d)(10)/(9)

If 3x+(2)/(x)=7, then (9x^(2)-(4)/(x^(2)))=25 (b) 35(c)49(d)30

If 4:3=x^(2):12, then the value of x(x>0)16( b) 4(c)9(d)3

If f(x)=|x^2-9x+20| , then f^(prime)(x) is equal to (a) -2x+9 for all x in RR (b) 2x-9 if 4 < x < 5 (c) -2x+9 if 4 < x < 5 (d) None of these

The ratio in which the line 2x + y - 4 = 0 divides the line segment joining the points A(2, -2) and B(3, 7) is (a) 3 : 7 (b) 4 : 7 (c) 2 : 9 (d) 4 : 9

Find the value of (2/3)^2 a) 4/9 b) 9/4 c) -2/9 d)0

The smallest of the fractions 2/3,4/7,8/(11) and 5/9 is 2/3 (b) 4/7 (c) 8/(11) (d) 5/9