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प्रश्न
Integrate the functions:
`cos sqrt(x)/sqrtx`
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उत्तर
Let I = `int (cos sqrtx)/sqrtx` dx
Put `sqrt x = t`
`1/(2 sqrt x)` dx = dt or `1/sqrt x` dx = 2 dt
Hence, `I = 2 int cos t dt`
`= 2 sin t + C = 2 sin sqrt x + C`
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