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Question

The chord of contact
of tangents from a point P to a circle passes through Q. If $$ l_1 $$ and $$
l_2 $$are the length of the tangents from P and Q to the circle then PQ is
equal to



A
l1+l22
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B
l1l22
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C
l21+l22
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D
2l21+l22
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Solution

The correct option is C $$ \sqrt{l_1^{2}+{l_2^{2}}} $$
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1981389_455357_ans_989b1f406ada4e9dbf247772f7c4772e.jpg

Mathematics

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