self Maths Puzzle

If cos^4alpha/cos^2beta +sin^4alpha/sin^2beta=1 then the value of cos^4beta/cos^2alpha+sin^4beta/sin^2alpha is

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self Other Question

A, B,C subscribe together Rs 50000 for a business. A subcribes Rs 4000 more than B and B Rs 5000 more than C. Out of a total profit of Rs 35000. A receives (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