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What is differentiation and what does it actually mean?

Differentiation is the process of finding the rate of change of a function with respect to its independent variable. In simpler terms, by differentiating, you can find the gradient of a curve. If its a strai...
JB
Answered by Jess B. • Maths tutor
5061 Views

How do i find dy/dx in terms of t for two parametric equations that are in terms of t.

To differentiate parametric equations we have to use the chain rule in a special way. We know that the chain rule can be written as dy/dx = dy/dt * dt/dx, as both dts cancel. But if we have an equation x in ...
BW
Answered by Ben W. • Maths tutor
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Factorise and solve x^2 - 8x + 15 = 0

Step 1: Factorise . In the final factorised form, your answer would be written in the form (x+a)(x+b). When expanded, this becomes: x^2 + ( a + b )x + ab . Therefore, to factorise x^2 - 8x + 15, you need a +...
HS
Answered by Hanan S. • Maths tutor
3856 Views

Sue has 2 cats. Each cat eats 1 4 of a tin of cat food each day. Sue buys 8 tins of cat food. Has Sue bought enough cat food to feed her 2 cats for 14 days? You must show how you get your answer.

Initially we must work out the rate at which the tin food is consumed by 2 cats, so we multiply 1/4 (tin food per day for 1 cat) by 2(number of cats), which equals 2/4, so both cats consume 2/4 of a tin per ...
GK
Answered by Grisilda K. • Maths tutor
18158 Views

Solve for x and y using simultaneous equations: 3x+y=10 x+y=4

3x+y=10 _x+y=4-------------2x=6x=3x+y=43+y=4y=1
CL
Answered by Charlieanne L. • Maths tutor
3114 Views