The set of points defined by the equation x2+y2+z2=4 is

A a point
B a line
C a circle
D a sphere

Correct Answer: a sphere

দেয়া আছে,x2 + y2 + z2 = 4 এখানে প্রদত্ত সমীকরণে Dimension আছে 3টি। তাই এটি একটি গোলক (Sphere) হবে। উল্লেখ্য, দুটি Dimension অর্থাৎ x2 + y2 থাকলে সেটি হতো বৃত্ত।
Bissoy MCQ
#পিএসসি ও অন্যান্য নিয়োগ পরীক্ষা #গণিত #বাংলাদেশ অর্থনৈতিক অঞ্চল কর্তৃপক্ষ (সহকারী ব্যবস্থাপক) 25-09-2020

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