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secondary 4 | E Maths
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Yos
Yos

secondary 4 chevron_right E Maths chevron_right Singapore

I need help with part d

Date Posted: 3 years ago
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Wong Aw
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229 answers (Tutor Details)
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Suggested solution for Question (d). Hope this helps! : )
Rotation about origin doesn't change the magnitude of the vector. So if OA is rotated about origin to OE which lies on negative x-axis, it means that OE is a vector in neg x direction with same magnitude of OA, which can be found out from (-3,4) and (0,0) as 5 units.
Hence OE would be (-5,0). Let me know if there is any confusion
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Venkata Ramana
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