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`        Let y vary directly as the square root of x and inversely as z2 . When y is tripled and zquadrupled, x is multiplied by k . Determine the value of k .`
3 years ago

Vikas TU
11755 Points
```							If  y vary directly as the square root of x and inversely as z2 then,y = c*root(x)andy = c/z^2and also root(x) = 1/z^2...........(1)When y is tripled,3y = c*root(kx)and3y = c/(4z)^2root(kx) = 1/16z^2............(2)solving eqns. (1) and (2) we get,k = 1/256
```
3 years ago
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• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions