Search our library of homework questions

Top answers

All subjects

All levels

'The lives of the Russian peasants were transformed in the years 1928 to 1964.' Assess the validity of this view

The years 1928-1964 were a time in which Russia as a nation, faced a total transformation. From changes in economic and political structure, to a complete shift in social order, most aspects of an average...

Answered by Jasmine B. • History tutor

4341 Views

What is the difference between 'ser' and 'estar'?

Both ser and estar mean 'to be', but they are used in different contexts.Ser is generally used for permanent states, including nationalities, genders and professions. It can als...

Answered by Florine L. • Spanish tutor

1624 Views

Describe your best friend

Il mio migliore amico si chiama Pietro. E' un ragazzo moro e alto. Ha gli occhi verdi e piccoli. Gli piace molto il calcio, tifa la Roma e non si perde mai una partita della sua squadra del cuore. Gli pia...

Answered by Matteo C. • Italian tutor

3780 Views

Express 4sin(x)+6cos(x) in terms of Rsin(x+a) where R and a are constants to be determined (a should be given in rad).

R=sqrt(42)=6.48...a=arcos(4/sqrt(42))=0.905...Rsin(x+a)=6.48sin(x+0.905)

Answered by Benjamin U. • Maths tutor

4156 Views

Integrate ln(x)

Take ln(x) = 1 * ln(x) and integrate by parts. Let u = ln(x) and dv/dx = 1 such that du/dx = 1/x and v = x. Using the integrating by parts formula, you get x ln(x) - integral(1) = x ln(x) - x + c.

Answered by Jason Y. • Maths tutor

3762 Views