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Question

If AC,BC and AB are tangents to circle at Q,R and P respectively. AP=x,BR=y,CQ=z find AB.
452570_313d8ab3b0bd4da0bec2fba1239d7309.png

A
x
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B
y+z
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C
y+x
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D
y
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Solution

The correct option is C y+x
In given figure

AB=AP+PB

AB=x+BR
AB=x+y .... (BP=BR=y)(Tangents drawn from an external point to a circle)

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