ii) sin 25° cos 65+ cos 25° sin 65
Answers
Answered by
1
Answer:
sin25∘cos65∘+cos25∘sin65∘
=sin25∘sin(90∘−65∘)+cos25∘cos(90∘−65∘)
=sin25∘sin25∘+cos25∘cos25∘
=sin225∘+cos225∘
=1
Similar questions