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First, separate the algebraic fraction:(x+7) / ((x-3)(x+1) 2 = A/(x+3) + B/(x+1) + C/(x+1) 2 Multiply both sides by (x-3)(x+1) 2 : (x+7) = A(x+1) 2 + B(x+1)(x+3) + C(x+3) Set x=-1 in order to eliminate A and...

The passé simple is one of French’s lesser known tenses, since it has now mostly fallen out of fashion. One reason for its decline is the passé composé , with which French students will be more familiar. Bot...

The first question to address here is; what genre is the material you have been learning in class fits. Is it drama, poem, prose, non-fiction? From here, we can look at past exam questions, and observe a tre...

When describing the process of recrystallisation, it is important that every step is mentioned. Firstly, the impure product must be dissolved in a minimum amount of hot solvent. The hot solution should then ...

From the data sheet, the de Broglie wavelength, 𝜆 = h/p = h/(mv) The electron wavelength equals the proton wavelength so: 𝜆 e = 𝜆 p So: h/(m e v e ) = h/(m p v p ) m e v e = m p v p so the electron speed , v...