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Solve these simultaneous equations: 2x+y-5=0 and x^2-y^2=3

To solve this problem, you need to: rearrange the first equation (1) to express y in terms of x to obtain equation (3). Then, substitute this new equation into the quadratic one (the second equation from the...
NB
Answered by Nana B. • Maths tutor
5677 Views

Using named examples, assess the effectiveness of technological leapfrogging in contributing to the development process

Technological leapfrogging is the process of skipping inferior technology in order to reach a more efficient and cost-effective solution. Technology can increase the access to many resources such as mobile c...
ZB
Answered by Zoe B. • Geography tutor
2447 Views

What is the integral of sin(3x) cos(5x)?

Using trig formulas we have sin(5x+3x)= sin(5x)cos(3x)+cos(5x)sin(3x) and sin(5x-3x)= sin(5x)cos(3x) - cos(5x)sin(3x). Hence, sin(5x+3x) - sin(5x-3x) = sin(8x)-sin(2x) = 2cos(5x)sin(3x). This implies that co...
MN
Answered by Morenikeji N. • Maths tutor
6425 Views

solve 4^xe^(7x+5) = 21

ln((4^x)e^(7x+5)) = ln21; apply a natural log on both sides of the equation as an exponential containing e is involved ln4^x + ln(e^(7x+5)) = ln21; using logarithm rules you can seperate the single log on th...
WN
Answered by Wahib N. • Maths tutor
3792 Views

What is the best way to write and essay?

The best essays have are clear, correct, and convincing. All essays should be clear. This means that every essay should have an introduction, main body, and conclusion. The introduction should explicitly tel...
JH
Answered by Jack H. • History tutor
2530 Views