Vectors

Find the angle which the following vector makes with the positive x-direction.
2i+j+2k

Do I use the dot product?

Original post by Liampayneisapain

Find the angle which the following vector makes with the positive x-direction.
2i+j+2k

Do I use the dot product?

Yes. You'll need a vector in the positive x direction first.

Is this A-level or GCSE?? Because I think your posting this question in the GCSE maths section instead of the A-level one!

Original post by NothingButWaleed

...

This is the correct forum for this question.

This is the correct forum for this question.

But how? This is the GCSE section!

Original post by NothingButWaleed

But how? This is the GCSE section!

This is F38 - the Maths Forum. All ages and levels of education welcome.

This is F38 - the Maths Forum. All ages and levels of education welcome.

Oh ok!

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