If (x)= _ 1 x ^ x [t^ 2 ] d t_ 1 then ^ (1) is equal to
Mathematics · JEE Main · NTA Exams — Integral Calculus
\[\text { If } \phi(x)=\int_{\frac{1}{x}}^{\sqrt{x}} \sin \left[t^{2}\right] d t_{1} \text { then } \phi^{\prime}(1) \text { is equal to }\]
- sin 1
- 2 sin 1
- \(\frac{3}{2} \sin 1\)
- None of these
Answer
(C) 3 2 1
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