cost lim- -11-7x is equal to :
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cost lim- -11-7x is equal to :

JEE/Engineering Exams
Maths
Solution
90
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( lim _{x rightarrow 1} frac{cos left(frac{pi x}{2}right)}{1-sqrt{x}} ) ( frac{0}{0} ) form ( begin{aligned} text { Litaspital rule } lim _{x rightarrow 1} frac{operatorname{tsin}left(frac{pi x}{2}right)left(frac{1}{x}right)}{operatorname{tg} sqrt{x}} & text { in } =& lim _{x rightarrow 1} sqrt{x} sin left(frac{pi x}{2}right) & text { 1 } end{aligned} )
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