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Niyati Rahim Bal

Asked: 3 years ago2022-10-30T14:29:32+05:30 2022-10-30T14:29:32+05:30In: General Awareness

If `alpha` is an acute angle and `sin(alpha/2)=sqrt((x-1)/(2x))` then `tan alpha` is
A. `sqrt((x-1)/(x+1))`
B. `(sqrt(x-1))/(x+1)`
C. `sqrt(x^(2)-1)`
D. `sqrt(x^(2)+1)`

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If `alpha` is an acute angle and `sin(alpha/2)=sqrt((x-1)/(2x))` then `tan alpha` isA. `sqrt((x-1)/(x+1))`B. `(sqrt(x-1))/(x+1)`C. `sqrt(x^(2)-1)`D. `sqrt(x^(2)+1)`