1) sin65 + sin43 – sin29 - sin7=?Angles are in degrees.2) sin(pi cot theta)= cos(pi tan theta)then cot2theta=?3)cosxcosysin(x-y) + cosycoszsin(y-z) + coszcosxsin(z-x) + sin(x-y)sin(y-z)sin(z-x)=?
1) sin65 + sin43 – sin29 - sin7=?
Angles are in degrees.
2) sin(pi cot theta)= cos(pi tan theta)
then cot2theta=?
3)cosxcosysin(x-y) + cosycoszsin(y-z) + coszcosxsin(z-x) + sin(x-y)sin(y-z)sin(z-x)=?
Sibashis ghosh , 10 Years ago
Grade 11
