Problem : Which trigonometric function is equivalent to this expression: sin( - x) ?sin( - x) = cos(x) .
Problem : What are the amplitude and period of y = - 3 sin(2x + 1) ?Amplitude = 3. Period = Π .
Problem : What are the amplitude and period of y = cos( x) ?Amplitude = . Period = 4Π .
Problem : Which of the trigonometric functions are even, which are odd, and which are neither?Cosine and Secant are even. Sine, cosecant, tangent, and cotangent are odd.
Problem : What are the period and amplitude of the function below?