1.

`lim_(xrarr pi/2) ((1-tanx//2)(1-sinx))/((1-tanx//2)(pi-2x)^3)`A. `oo`B. `(1)/(8)`C. `0`D. `(1)/(32)`

Answer» Correct Answer - D
We have,
` lim_(xto pi//2)((1-tanx//2)/(1+tanx//2)){(1-sinx)/((pi-2x)^3)}`
` (1)/(64) lim_(xto pi//2) tan((pi)/(4)-(x)/(2))/(((pi)/(4)-(x)/(2)))([1-cos((pi)/(2)-x)])/(((pi)/(4)-(x)/(2))^2)=(1)/(64)xx1xx2=(1)/(32)`


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