Find the derivatives of y = sin 4x

If A = \(\frac{\theta}{360}\)\(\pi r^2\), make \(\theta\) the subject of the formula

What is the minimum value of y = 2 - 4x - 2x\(^2\) 

If the probability of death is q and the probability of survival is p, find the probability of one death and one survival in an accident involving two persons

Given the construction in the figure above. What is X\(\hat{Y}\)Z