prove that sinsquare a+sinsquare b=1
QGP:
Hey, it can be proved only if a+b=90 in the degree system.
Answers
Answered by
1
Considering the degree system, if A+B=90.
We have
A+B=90
∴B=90-A
Consider
sin²A+sin²B
=sin²A+sin²(90-A)
=sin²A+cos²A
=1
Hence proved
We have
A+B=90
∴B=90-A
Consider
sin²A+sin²B
=sin²A+sin²(90-A)
=sin²A+cos²A
=1
Hence proved
Similar questions