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3. The point P lies on the curve with equation y=ln(x/3) The x-coordinate of P is 3. Find an equation of the normal to the curve at the point P in the form y = ax + b, where a and b are constants.

P- (3,0) y=ln(x/3)     u=x/3    y=ln(u) ​​​​​​            du = 1/3  dy = 1/u = 3            dx       du dy= du x dy dx dx  du   = 1/3 x 3 = 1 gradient at normal = -1 equ...

KB
Answered by Kaushalya B. Maths tutor
13530 Views

In a sale a bag is reduced by 30%. The bag is now £31.50. Work out the original price of the bag.

£45.00

SC
Answered by Safiya C. Maths tutor
3843 Views

Solve this simultaneous equation: (1) 2x+3y=12 (2) x+4y=11

x=3,y=2

SC
Answered by Safiya C. Maths tutor
4006 Views

Explain the use of Imperfekt and Perfekt, and give one example each.

The German tense of Imperfekt is used when describing situations that occured in the and which have no influence on the present. It is also used when talking about states and feelings in the past. Additio...

JS
Answered by Jeanette S. German tutor
3513 Views

Describe the structure of proteins

Proteins have a primary, secondary, tertiary and quaternary structure. The primary structure comprises of the specific sequence of amino acids which are held together by peptide bonds. The secondary struc...

TT
Answered by Taran T. Biology tutor
3416 Views

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