self Maths Puzzle

If sin^2theta=cos^3 theta, then the value of (cot^theta-cot^2theta)is

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self Other Question

(sin theta-cos theta+1)/sin theta+cos theta-1 where theta is not equal to pie/2 (i.e. 90 degree ) is equal to If 2y cos theta=x sin theta and 2x sec theta -y cosec theta=3, then the relation between x and y is