Indicate whether the statement is true or false. 16. The derivative of a sinusoidal function is another sinusoidal function. 17. The derivatives of the reciprocal trigonometric functions can be found using the chain rule and their related base functions. 18. A sinusoidal function can be differentiated only if the independent variable is measured in radians. 19. There are an infinite number of tangents with a given non-zero slope to a sinusoidal curve. 20. The rate of change of a sinusoidal function is periodic in nature. 21. The graph of a power function, y = x" , is steeper than the graph of an exponential function, y = a (a> 0, a = 1), as the value of x increases. 22. Another way of expressing Inx is log x. 23. The derivative of an exponential function is always another exponential function. 24. The nth derivative of y = e" will always be e". 25. If y = e" , then y'= () 26. Given that y = cos x find dy 283 and explain your answer (hint: 83d derivative of cos x)