Question

tangent drawn to a circle with Centre O from an external point P touches the circle at the point Q if Q is 9 CM PO is 15 CM then what is the length of PQ ​

Answer 1

Answer:

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Step-by-step explanation:

you are giving sample of dilute hydrochloric acid and dilute sulfuric acid. which reagent will you use to differentiate between the two acid? mention the physical change associated with the test.

Answer 2

Answer:

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