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"url": "https://numbas.mathcentre.ac.uk/api/questions/12071/?format=api",
"name": "Dot product - find angles between two pairs of vectors, ",
"published": true,
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"author": {
"url": "https://numbas.mathcentre.ac.uk/api/users/697/?format=api",
"profile": "https://numbas.mathcentre.ac.uk/accounts/profile/697/?format=api",
"full_name": "Newcastle University Mathematics and Statistics",
"pk": 697,
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"edit": "https://numbas.mathcentre.ac.uk/question/12071/dot-product-find-angles-between-two-pairs-of-vecto/?format=api",
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"source": "https://numbas.mathcentre.ac.uk/question/12071/dot-product-find-angles-between-two-pairs-of-vecto.exam?format=api",
"metadata": {
"licence": "Creative Commons Attribution 4.0 International",
"description": "<p>Find the cosine of the angle between two pairs of 3D and 4D vectors.</p>\n<p>The calculations and answers are correct, however the Advice should display the interim calculations of the lengths of vectors and their products to say 6dps. At present the student may be mislead into using 2dps at each stage - the instruction at the start of Advice is somewhat confusing.</p>"
},
"status": "problem",
"resources": []
}
