1. If x,y and z are the pth, qth and rth terms of an AP and also of a GP then,

x^y-z. y^z-x. z^x-y is equal to

(a) xyz

(b) 0

(c) 1

(d) none of these

2. Find the value of x in (-∏,∏) which satisfy the equation

8^{(1+ |cos x| + cos^2 x + |cos^3 x| + ...)} = 4³

3. If a,b,c are in GP then the equation ax² + bx + c =0 and dx² + ex + f have a common root if d/a, e/b and f/c are in

(a) AP

(b) GP

(c) HP

(d) none

Dear Raghu,

 i am solving the first question  answer is 1

and this is a request that send questions seperately

as it is difficult to upload the solution of more than one question

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