[" 9.If "2A=3B=4C(pi)/(8)" ,TI "A:D:~ ],[[" (a) "2:3:4," (b) "4:3:2]]

(i) If A:B=2:3,B:C=4:5,C:D=6:7 FIND A:D

(2) If A:B=2:3 , B:C=4:5 and C:D=6:7, find A:D

If A:B=4:5,B:C=3:4,C:D=7:11 , then A:D is

Find the value of a , b , c , d , x , y from the following matrix equation . ({:(d , 8) , (3b , a):}) + ({:(3 , a) , (-2 , -4):})= ({:(2 , 2a) , (b , 4c):}) + ({:(0 , 1) , (-5 , 0):})

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

If A:B=3:4, B:C=8:9, C:D=15:16 then A:D is equal to ?

If tanA=1/2andtanB=1/3, then: A+B= (a) pi/4 (b) 0 (c) pi (d) pi/6

The solutions of the equation sin x+2sin2x+sin3x=cos x+3cos2x+cos3x in the interval 0<=x<=2 pi, are (pi)/(8),(5 pi)/(8),(2 pi)/(3)(b)(pi)/(8),(5 pi)/(8),(9 pi)/(8),(13 pi)/(8)(1 pi)/(3),(9 pi)/(3),(2 pi)/(3),(13 pi)/(8) (d) (pi)/(8),(5 pi)/(8),(9 pi)/(3),(4 pi)/(3),(4 pi)/(3),(9 pi)/(3),(2 pi)/(3),(13 pi)/(8)(d)