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Maths
A Level

Find the first 4 term of the binomial expansion (2-4x)^5

Step 1: Look at formula in formula booklet provided and write out formula.

Formula: (a+b)n= annc1an-1b + nC2an-1<...

Answered by Charlie R. Maths tutor
4143 Views

find the exact solution to the following equation: ln(x) + ln(3) = ln(6)

My first step would be to put all the known values on one side: ln(x) = ln(6) - ln(3) Then, using log laws, we have: ln(x) = ln(6/3) so, ln(x) = ln(2) so, x = 2

Answered by Rhianna C. Maths tutor
8462 Views

Show that cosec(2x) + cot(2x) = cot(x)

cosec(2x) + cot(2x)

CONVERT ALL COSEC/COT/SEC FUNCTIONS INTO FUNCTIONS USING SIN/TAN/COS

= 1 / (sin2x) + cos(2x) / sin(2x)

COMBINE THE TWO FRACTIONS INTO ONE

= [1...

Answered by Divya K. Maths tutor
66657 Views

Integrate the following between 0 and 1: (x + 2)^3 dx

Initially, we must recognise the simplest way to integrate this equation is using the 'reverse chain rule' method. 

This means raising the value of the power, in this case '3', by one, and then div...

Answered by Will E. Maths tutor
3127 Views

Differentiate the following: 4x^3 + sin(x^2)

dy/dx = (4 * 3)x(3-1) + 2x(2-1)*cos(x2)

         = 12x2 + 2xcos(x2

Answered by Maisy B. Maths tutor
3831 Views

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