User interface language: English | Español

Date May 2018 Marks available 5 Reference code 18M.2.AHL.TZ1.H_3
Level Additional Higher Level Paper Paper 2 Time zone Time zone 1
Command term Express Question number H_3 Adapted from N/A

Question

Let  f ( x ) = tan ( x + π ) cos ( x π 2 ) where  0 < x < π 2 .

Express  f ( x ) in terms of sin  x and cos  x .

Markscheme

* This question is from an exam for a previous syllabus, and may contain minor differences in marking or structure.

tan ( x + π ) = tan x ( = sin x cos x )      (M1)A1

cos ( x π 2 ) = sin x      (M1)A1

Note: The two M1s can be awarded for observation or for expanding.

tan ( x + π ) = cos ( x π 2 ) = si n 2 x cos x      A1

[5 marks]

Examiners report

[N/A]

Syllabus sections

Topic 3— Geometry and trigonometry » AHL 3.10—Compound angle identities
Show 39 related questions
Topic 3— Geometry and trigonometry

View options