If veca"and "vecb are any two vectors such |veca+vecb|=|veca-vecb| find the angle between veca"and "vecb

If veca"and "vecb are any two vectors such |veca+vecb|=|veca-vecb| fin

1.	If veca"and "vecb are any two vectors such \|veca+vecb\|=\|veca-vecb\| find the angle between veca"and "vecb
Answer» ANSWER :`90^(@)`