SinA cos 90-A + cos A sin 90- A
Answers
Answered by
1
Answer:
Step-by-step explanation:
Attachments:
Answered by
0
SinA × SinA + CosA × CosA. { since cos (90-A) =
SinA and Sin (90-
A ) = CosA}
= Sin²A + Cos²A
= 1
Similar questions