Question

Evaluate
sin 25° Cos° +Cos25° sin ​65°

Answer 1

Answer:

sin25° . cos65° + cos25° . sin65°

sin25° . cos(90°-65°) + cos25° . sin(90°-65°)

sin25° . sin25° + cos25° . cos25°

sin²25° + cos²25° =1

sin²Q+cos²Q=1

(here Q = theta )

this is your answer...

thanks..

Answer 2

Answer:

sin25°* cos(90°-25°)+cos25°*sin(90-25°)

=sin25°*sin25°+cos25°*cos25°

=sin^2 25° + cos^25°

=1

o think it's right