In the triangle ABC, if B = 2, angle B = 45 °, if the triangle has two solutions, find the value range of A The answer I got was 0 to 2 root 2, 2 to 2 root 2 The sine theorem of triangle is applied ~ (in triangle ABC, a / Sina = B / SINB = C / sinc)

In the triangle ABC, if B = 2, angle B = 45 °, if the triangle has two solutions, find the value range of A The answer I got was 0 to 2 root 2, 2 to 2 root 2 The sine theorem of triangle is applied ~ (in triangle ABC, a / Sina = B / SINB = C / sinc)

It can't be 0
If you know that the sum of the internal angles of a triangle is 180 degrees, then 0 degrees