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What is the subjunctive tense?

The subjunctive tense is a form of the present tense used to express uncertainty or doubt, for example "Es imposible que Maria esté aqui" - "It is impossible that Maria is here".
JM
Answered by Jennifer M. • Spanish tutor
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Integrate (x)(e^x) with respect to x and then integrate (x)(e^x) with respect to y.

i) By integration by parts, we see that it equals (x)(e^x)-(e^x)+C, where C denotes the constant of integration. ii) (x)(y)(e^x)+C, where C denotes the constant of integration.
RV
Answered by Rohan V. • Maths tutor
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How do you find the possible values of cos(x) from 5cos^2(x) - cos(x) = sin^2(x)?

First, you start by replacing sin^2(x) with 1-cos^2(x) as you want the equation to be in terms of cos(x) and you know sin^2(x)+cos^2(x) = 1. Then you rearrange the equation to get 0 on one side so that you c...
GK
Answered by Gowri K. • Maths tutor
4942 Views

Describe and explain how social, economic and cultural factors can affect birth rates

Social factors can have a considerable effect on birth rates. Education levels greatly effect birth rates, educated woman are much more likely to be career mind and less intent on having large numbers of chi...
AB
Answered by Alex B. • Geography tutor
9028 Views

Explain how changes in prices allocate scarce resources in a market economy [12 marks]

The concept of 'scarce resources' refers to the basic economic theory that the market will consistently have insufficient resources to fulfill all of society's wants and needs. The price of a product in the ...
LK
Answered by Laura K. • Economics tutor
14385 Views