Home
Class 11
MATHS
Prove that: sin(9pi)/(10) + sin(13pi)/...

Prove that:
`sin(9pi)/(10) + sin(13pi)/(10)=-1/2`

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove that: sin((pi)/(10))sin((13 pi)/(10))=-(1)/(4)

sin((pi)/(10))sin((3pi)/(10))=?

Prove that: (sin pi)/(10)+(sin(13 pi))/(10)=-(1)/(2)

Prove that: sin(pi/10) sin((13pi)/10)=-1/4

Prove that 4sin(pi/10) sin((13pi)/10)=-1

Prove that: sin(pi/10)+sin((13pi)/10)=-1/2

sin(pi/10)sin((13pi)/10)=

Prove that sin frac (pi)(10)+ sin frac (13 pi)(10)=-1/2 .

sinpi/10+sin(13pi)/(10)=?