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Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Aditi Agrawal posted an Question
May 28, 2020 • 22:12 pm
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30 points
30 points
- IIT JAM
- Physics (PH)
Oa +ob+oc +od =4 o1 illustration(6 )if a, b, c, d be any four points and e and f be the middle points of ac and bd respectively, then the solut ab+cb+cd + ad is
OA +OB+OC +OD =4 O1 ILLUSTRATION(6 )If A, B, C, D be any four points and E and F be the middle points of AC and BD respectively, then the SOLUT AB+CB+CD + AD is equal to (a) 3 EF (b) 4 EF (c) 4 FE (d) 3 FE
2 Answer(s)
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Abhishek singh
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here is the solution. To prove this type of questions, you should take S, such that the expression simplifies. you would be able to save time. I did use some properties of centroid. You should remember these properties. make note of them. Best regards.
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do ask doubts if any.
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sorry for being late.
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Abhishek singh![best-answer]()
Here is the solution for second part. Patiently read the solution. if you got stuck anywhere do repeat the solution. Match each step of solution to the wordings of question. I have made some extra lines to show you the calculations. A,B,C,D,E,F all points are shown. Use the property of parallelogram. I had taken AB parallel to DC for simplification. Best regards.
can you please explain the section formula for vectors with it's applications
https://www.toppr.com/guides/maths/vector-algebra/section-formula/
this will help you. it's will help you in solving questions.
it*
thanks