An angle whose vertex is the center of a circle and whose legs (sides) are radii

Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x. a. tanx=2 b. sinx=2 c. tanx=1/2 d. sinx=1/2

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

The function models the number of accidents