Subject
MBA Exam
Topic
MBM Admission Test 2009(13th Batch)
if c2+ d2= 4 and (c-d)2= 2, what is the value of cd?
if c2+ d2= 4 and (c-d)2= 2, what is the value of cd?
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3Explanation
here, c2+ d2= 4 and (c-d)2 = 2 so, (c-d)2 =c2+ d2-2cd or,2cd = (c2+d2)-(c-d)2 or2cd=4-2 or,2cd=2 so, cd=1Related questions
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