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