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Vectors AS maths
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Tanyme
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#1
The question is asking to find the angle made with the positive x axis. Wouldn’t it be the one i drew. The worked out answer shows a different angle. Could be somebody plz explain that to me. I’ll attach screenshots and the pictures. Thanks.
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Tanyme
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mqb2766
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(Original post by Tanyme)
The question is asking to find the angle made with the positive x axis. Wouldn’t it be the one i drew. The worked out answer shows a different angle. Could be somebody plz explain that to me. I’ll attach screenshots and the pictures. Thanks.
The question is asking to find the angle made with the positive x axis. Wouldn’t it be the one i drew. The worked out answer shows a different angle. Could be somebody plz explain that to me. I’ll attach screenshots and the pictures. Thanks.
6i+8j would make an angle atan(4/3) above the x-axis
6i-8j would make an angle atan(4/3) below the x-axis.
Last edited by mqb2766; 1 month ago
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Goldenknight
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You started from the wrong position
1. Start from the origin. So you go 6 units to the right and 8 units down right?
So its at the positive x-axis. The one you drew is in the negative x-axis which is not correct
2. Then you measure the angle it makes to the positive x-axis which is shown in the solutions too(Cause it touches the positive x-axis even if its below the x-axis)
1. Start from the origin. So you go 6 units to the right and 8 units down right?
So its at the positive x-axis. The one you drew is in the negative x-axis which is not correct
2. Then you measure the angle it makes to the positive x-axis which is shown in the solutions too(Cause it touches the positive x-axis even if its below the x-axis)
Last edited by Goldenknight; 1 month ago
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