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Speaking Test: How can I improve my pronounciation?

It is important to remember, having an accent is normal. You can live in the country for decades and still have an accent. It is however equally important that you pay attention to the intonation of a langua...
IL
Answered by Isabel L. • German tutor
2674 Views

Show that the inequality x^4 < 8x^2 + 9 is satisfied for when -3 < x < 3 .

(x^2 - 9)(x^2 + 1) &lt; 0 solving the equation to get solutions to the equality (x^2 - 9)(x^2 + 1) = 0 : x = +/- 3 or x = +/- 1 now consider points either side of these x-intercepts... for x&gt;3: equality i...
HT
Answered by Hakkihan T. • MAT tutor
1588 Views

Express cos(x) + (1/2)sin(x) in terms of a single resultant sinusoidal wave of the form Rsin(x+a)

cos(x) + (1/2)sin(x) : Rsin(x + a) = R{sin(x)cos(a) + cos(x)sin(a)} = (1/2)sin(x) + (1)cos(x) (comparing coeffs.) Therefore Rcos(a) = 1/2 and separately Rsin(a) = 1 So tan(a) = 2 and R^2 = 5/4. Answer: sqrt(...
HT
Answered by Hakkihan T. • Maths tutor
8293 Views

How can you tell whether a word is feminine or masculine?

There is no simple answer for this! In short, the gender of nouns in French must be learnt, rehearsed and repeated until you can't hear the word any other way. Although there are some shortcuts for this, for...
YG
Answered by Yemi G. • French tutor
4052 Views

Find the general solution, in degrees, of the equation 2 sin(3x+45°)= 1

A general way of solving these equations is getting them to the form sin(y)=k . In this case, to do so, we have to divide by 2 and then put y=3x+45° We then get sin(y)=1/2 . You should know which angles have...
CG
9443 Views