Can anyone solve the problem but show me how you solve it because i want to know how to solve this problems. just solve the problem in pice of paper.

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

See attachment below and find the equivalent of tan(∠qsr)