If `a : b=c : d` then `(m a+n c)/(m b+n d)` is equal to `m : n` b. `d : c n` c. `a n : m b` d. `a : b`

The value of D^(n)(ax+b)^(m) is equal to

7 lf If log (x y m 2n and log (x4 y n 2m, then log X is equal to (A) (B) m-n (c) men (D) m n

If a/b = c/d =e/f = 4, then (m ^(2) a + n^(2) c + p ^(2) e )/( m ^(2) b + n ^(2) d + p ^(2) f )=?

In a parallelogram A B C D diagonals A C\ a n d\ B D intersect at O\ a n d\ A C=6. 8\ c m\ a n d\ B D=5. 6 c m . Find the measures of O C\ a n d\ O D .

If a\ a n d\ b are two numbers such that a b\ =\ 0 , then (a) a\ =\ 0\ a n d\ b\ =\ 0 (b) a\ =\ 0\ or\ b\ =\ 0 (c) a\ =\ 0\ a n d\ b!=0 (d) b\ =\ 0\ a n d\ a!=0

Roots of the equation |x m n1a x n1a b x1a b c1|=0 are independent of m ,a n dn independent of a ,b ,a n dc depend on m ,n ,a n da ,b ,c independent of m , na n da ,b ,c

In Figure, if A C is bisector fo /_B A D such that A B=3\ c m\ a n d\ A C=5\ c m , then C D= 2\ c m (b) 3\ c m (c) 4\ c m (d) 5\ c m

a, b, c, d and e are integers .If a, b, c, d and e are geometric progression and lcm(m, n) is the least common multiple of m and n, then the maximum value of (1)/(1cm (a,b)) + (1)/(1cm (b,c)) + (1)/(1cm(c,d)) + (1)/(1cm (d,e)) is

A ,\ B ,\ C are three sets of values of x : A :2,\ 3,\ 7,\ 1,\ 3,\ 2,\ 3, B :7,\ 5,\ 9,\ 12 ,\ 5,\ 3,\ 8 C :4,\ 4,\ 11 ,\ 7,\ 2,\ 3,\ 4 Which one of the following statements is correct? M e a n\ of\ A=\ Mod e\ of\ C M e a n\ of\ C=M e d i a n\ of\ B M e d i a n\ of\ B=Mod e\ of\ A M e a n ,\ M e d i a n\ a n d\ Mod e\ of\ A\ a r e\ e q u a l