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

Solution of secqx+secpx=0 form AP with common difference

Which of the following are Aps? If they form an AP, find the common difference d and write three more terms. (vii) 0, -4, -8, -12, …….

Which of the following are APs ? If they form an AP,find the common difference d and write three more terms. :- 0,-4,-8,-12, …

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

Write of the following are A.P.s ? If they form an A.P., find the common difference d and write three more terms . 0,-4,-8,-12,….

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