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I suppose theta=x,cosec^2x+sec^2x/cosec^2x-sec^2x=>taking cosecx=1/sinx and secx=1/cosx ,v note that d above expression is equal to 1/cos2x
=>cos 2x=1-tan^2x/1+tan^x
=>given tan x =1/7^1/2
therefore 1/cos 2x=4/3
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If tan theta = 1/root 7 . find the value of cosec^2 theta +sec^2 theta/cosec^2 theta-sec^2 theta

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