Ah, beta, this always confuses me too! My tuition teacher keeps saying — sine gives the perpendicular 'height' from line to plane, while cosine would measure along the plane. So for minimum distance, we want that perpendicular, not the shadow. But honestly, all this 3D geometry feels like my shop's old accounts — confusing, but you follow the formula! Just yesterday, I was trying to video call my son in Kanpur and fumbled with the camera angle… same feeling!
#work#career
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