Card 1 of 25
What value does y=sinθy=\sin\thetay=sinθ have at θ=0∘\theta=0^\circθ=0∘?
A
sin0∘=0\sin 0^\circ=\mathbf{0}sin0∘=0.
B
The reference angle gives the size; the quadrant gives the sign.
C
cos30∘=\cos30^\circ=cos30∘= 32\boxed{\frac{\sqrt3}{2}}23, cos45∘=\cos45^\circ=cos45∘= 22\frac{\sqrt2}{2}22, and cos60∘=\cos60^\circ=cos60∘= 12\frac1221.
D
12\frac1221, since 750∘−720∘=30∘750^\circ-720^\circ=30^\circ750∘−720∘=30∘.
Card 1 of 25
1.5.6 Graphs of basic trigonometric functions Flashcards
25 flashcards on OCR A Level Maths 1.5.6 Graphs of basic trigonometric functions: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.