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Solve the simultaneous equations: 1. 2 + 5y = 3x2. x + y = 6step 1 - rearrange equation 2 to make x/y the subjecthow? example: subtract y from both sidesx = 6 - ystep 2 - substitu...
We already have an expression for y, so we can substitute this in:x2+(x+1)2=x2+(x+1)(x+1) = x2+x2+2x+1=2x2+2x+1 and hence 2x2+2...
First being by expanding the brackets of the formula on the left: (cos(x) + sin(x))2 = (cos(x) + sin(x))*(cos(x) + sin(x)) = cos2(x)+2cos(x)sin(x)+sin2(x).Now we must use...
Microorganism decompose the lead leaves from the old tress. They break up the leaves and release the nutrient and carbon into the environment. the new leaves photosynthesis and use the Carbon that was bro...
tanx = sinx/cosxapply the quotient rule use the identity cos^x + sin^x = 1 to simplify
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