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# Maths c2 help watch

1. Sin (x-pi/2) =3/4

For 0 <x <2pi
2. (Original post by ramshahk)
Sin (x-pi/2) =3/4

For 0 <x <2pi
x-pi/2 = u, solve for u, sub back in x
3. (Original post by an_atheist)
x-pi/2 = u, solve for u, sub back in x
Where did u get U from
4. (Original post by ramshahk)
Where did u get U from
Its a variable used to make the maths simpler.
5. (Original post by an_atheist)
Its a variable used to make the maths simpler.
Oh okay

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