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We know sin(x)^2+cos(x)^2=1Dividing by cos(x)^2: tan(x)^2+1=sec(x)^2Substitute into the Equation and Rearrange to get: tan(x)^2-2*tan(x)-3=0Let y = tan(x): y^2-2y-3=0Factorising: (y-3)(y+1)=0so y = 3 and ...
The difference is the scope. A local variable can only be seen within its scope, for example a variable defined in a method can only be seen within this method. However, a global variable can be seen by e...
a) Ionisation energy is the minimum amount of energy required to remove an electron from each atom of one mole of gaseous atoms.b) Across a period, the ionisation energy increases due to the increas...
Content ought to include a breakdown of political and legal control mechanisms. Political control might fall under two headings, Parliamentary contr...
Primary succession is the change in an ecosystem from bare ground to a stable, complex ecosystem. Pioneer species are the first to colonise this bare ground, with adaptations to the harsh, low-nutrient co...
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