[" 8.If tan "px=cot qx," then the solutions are in "A.P" ,with "],[" common difference "]

If tanptheta= cotqtheta and pneq show that the solutions are in A.P with common difference (pi)/(p+q)

If tan p theta = cot q theta and p ne -q show that the solution are in A.P with common difference (pi)/(p+q)

Solutions of sec qx+sec px=0 form AP with common difference

Make an A.P. in which the common difference is negative.

Make an A.P. in which the common difference is negative .

The 11th term of an A.P. is 60 less than the 31st term of an A.P. . Find the common difference.

If the first and the last terms of an A.P. are -4 and 146 respectively and the sum of this A.P. is 7171 then its common difference is