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**Vector question-plz help**

hello.please help me with this vector problem..

Given two vectors

**A**and

**B**and a scalar 'd', it is known that:

**A.C**=d and

**A X C = B**

where C is a vector of unknown direction and magnitude.Find an expression for

**C**in terms of

**A,B,d**and the magnitude of vector

**A**.

I tried using langranges identity but am getting a value of c's magnitude and not C as a vector..Like im getting sumthing like

c^2=(B^2+d^2)/B^2 which i know is kinda wrong as the answer iv got is a magnitude and not a vector..

What do i do?Please help!

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