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(x^x)(ln(x)+1)

Waterfalls are found in the upper course of the river where a harder, more resistant band of rock sits on top of a softer, less resistant band of rock. The softer rock is more easily eroded, so it wears away...

u 2 = 2 + xx = u 2 - 2dx/du = 2u ʃ x(2 + x)) 1/2 dx= ʃ xu dx= ʃ u(u 2 - 2) dx= ʃ 2u 2 (u 2 - 2) du= ʃ 2u 4 - 4u 2 du= [2/5u 5 - 4/3u 3 + C]= 2/5 (2 + x) 5/2 - 4/3 (2 + x) 3/2 + C

History naturally is a difficult subject even at GCSE in terms of remembering a huge amount of names and dates. However, I would reassure the student. I would guide them through revision techniques that ofte...

I would firstly ask them how much they knew about trigonometry, and then guide them through the SoHCaHToA theory. I would use diagrams for this. I would then ask them to spot any ways they could work out any...