Neco 2020 Further Mathematics Question 39

Practice objective / multiple choice question 39 from the 2020 Neco Further Mathematics examination.

Neco 2020 Further Mathematics Objective / Multiple Choice Medium Difficulty
Question 39 NECO • 2020 • FURTHER_MATHEMATICS • objective

Vectors \\mathbf{a} and \\mathbf{b} in three dimensions satisfy \\|\\mathbf{a}\\|=3, \\|\\mathbf{b}\\|=4 and the angle between them is 60^{\\circ}. Let \\mathbf{c}=2\\mathbf{a}-\\mathbf{b}. Find \\|\\mathbf{c}\\|.

Answer Options

A. 2\\sqrt{13}
B. 5\\sqrt{2}
C. 4\\sqrt{7}
Correct Answer D. 2\\sqrt{7}
Correct Answer
D
Correct Option:
2\\sqrt{7}

About This Question

This is Neco 2020 Further Mathematics Question 39. It is one of the objective questions from the 2020 Neco Further Mathematics examination.

Difficulty level: Medium .

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