Card 1 of 20
What arc length subtends an angle of one radian at a circle's centre?
A
sin(0.04)≈0.04\sin(0.04)\approx 0.04sin(0.04)≈0.04.
B
x2−3x+0.01=0x^2-3x+0.01=0x2−3x+0.01=0.
C
An arc length equal to the radius.
D
For small xxx in radians, sinx≈\sin x\approxsinx≈ x\boxed{x}x.
Card 1 of 20
3.5.2 Trigonometry (A-level only) Flashcards
20 flashcards on WJEC A Level Maths 3.5.2 Trigonometry (A-level only): the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.