All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions.

(i)

Equation of tangent:

(ii)

Tangent at P:

Tangent at Q:

Since ,

(iii)

Equating the equations of both C and L,

let ,

Using GC,

(iv)

### KS Comments:

This question is not difficult. The only problem I noticed is that students were panicking by the time they reached this question, partly due to the heavy weightage of this question. But panicking caused them to make further mistakes.

2014 A-level H2 Mathematics (8864) Suggested Solutions | The Culture[…] Question 11 […]

2013 A-level H2 Mathematics (9740) Suggested Solutions | The Culture[…] Question 11 […]