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Use the product rule:

d/dx(fg) = f'g + fg'

f = x²    f' = 2x   g = sin(x)  g' = cos(x)

answer = 2xsin(x) + x²cos(x)

Cache is a small amount of memory which is part of the CPU which is physically closer to the CPU than RAM is. The more cache there is, the more data can be stored closer to the CPU. Cache memory is benefi...

Businesses can motivate employees either through monetary or non-monetary incentives. There are many monetary incentives, some of which are: - Overtime: Staff are paid extra for working over and above the...

Firstly sweat is released from sweat glands onto the surface of our skin. This acts to decrease body temperature by causing thermal engery to be transfered away from the skin as the sweat evaporates.

x² + 8x = (x + 4)² - 16, so x² + 8x - 5 = (x + 4)² - 16 - 5 = (x + 4)² - 21, so then (x + 4)² - 21 = 0 (x + 4)² = 21 -----> ...