DU-A

tanθ+secθ=x\tan \theta+\sec \theta=x হলে, cosecθ\operatorname{cosec} \theta এর মান কত? (Iftanθ+secθ=x(I f \tan \theta+\sec \theta=x Than what is the value of coseθ?)\operatorname{cose} \theta ?)

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