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First multiply top and bottom by conjugate of denominator, (7-3√5), and expand(3 + 2√5)(7 - 3√5)/(7 + 3√5)(7 - 3√5)(21 + 14√5 - 9√5 - 30)/(49 + 3√5 - 3√5 - 45)Simplify top and botton(-9 + 5√5)/4Write in r...

The threshold frequency is the minimum frequency a photon can be and still just overcome the work function (Φ) of a particular material. The threshold frequency is directly proportional to the work functi...

A product analysis takes into account who the product is for, both client and user if separate, and who is designing and making the product.It also takes into account;ShapeFormColour & TextureDecorati...

Of course, allow me to read through it or walk me through it and I will aid you in it and advise on appropriate methods where possible

One of the problems with questions like this, is that there is so much to talk about. Many students can fall into the trap of waffling and writing too much about a single point.
Using PEE paragraphs ...