Anonym Anonym
  • 29-07-2014
  • Mathematics
Answered

prove that [tex]cos 9x-cos 5x/sin17x-sin3x=-sin2x/cos10x[/tex]



Answer :

pepe11
pepe11 pepe11
  • 29-07-2014
cos9x - cos5x = -2sin2x.sin7x
sin17x - sin3x = 2sin7x.cos10x 
so f(x) = [tex] \frac{-2sin2x.sin7x}{2sin7x.cos10x} [/tex] =[tex] \frac{-sin2x}{cos10x} [/tex]

Answer Link

Other Questions

vesicles that contain a cells digestive enzymes are called ?
Alex built a snowman using three snowballs,one small, one medium and one large, with diameters in the ratio 2:3:5.      Although highly unlikely due to the phys
(−2x0y3 )(4x2y4 )+(2y5 )(3xy)2
Alex built a snowman using three snowballs,one small, one medium and one large, with diameters in the ratio 2:3:5.      Although highly unlikely due to the phys
Why are some examples of a chemical reaction not actually foolproof evidence that of a chemical reaction?13, 8th grade, and I'm doing my science lab report: The
who was the first president of the united states of america
add and simplify  9/16=1/2=?
Alex built a snowman using three snowballs,one small, one medium and one large, with diameters in the ratio 2:3:5.      Although highly unlikely due to the phys
who was the first president of the united states of america
log3(2x-5)=2 Answer is 41/2.  Why?