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Find the required point be P(x1, y1)dot ...

Find the required point be `P(x_1, y_1)dot` The tangent to the curve `sqrt(x)+sqrt(y)=4` at which tangent is equally inclined to the axes.

A

`(1,-2)`

B

`(0,16)`

C

`(16,0)`

D

`(4,4)`

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The correct Answer is:
D
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