Two rods of lengths ‘a’ and ‘b’ slide along coordinate axes, such that their ends are concyclic. Locus of centre of circle is

In scientific notation, 0.00016 can be written as

Measured value can be corrected by subtracting measurement uncertainty from it.

Numbers are written in exponential notatiion as N x 10n. Identify correct statement from the following?

The decimal equivalent of 3/5 may be written up to four significant figures are

Chords of the circle&nbsp;<math><m:semantics><m:mrow><m:msup><m:mi>x</m:mi>&nbsp;<m:mn>2</m:mn>&nbsp;</m:msup><m:mo>+</m:mo><m:msup>&nbsp;<m:mi>y</m:mi>&nbsp;<m:mn>2</m:mn>&nbsp;</m:msup><m:mo>+</m:mo><m:mn>2</m:mn><m:mi>g</m:mi><m:mi>x</m:mi><m:mo>+</m:mo><m:mn>2</m:mn><m:mi>f</m:mi><m:mi>y</m:mi><m:mo>+</m:mo><m:mi>c</m:mi><m:mo>=</m:mo><m:mn>0</m:mn></m:mrow>&nbsp;</m:semantics></math>&nbsp;subtends a right angle at the origin.&nbsp;The locus of the feet of the perpendiculars from the origin to these chords is&nbsp;

Two rods of lengths ‘a’ and ‘b’ slide along coordinate axes, such that their ends are concyclic. Locus of centre of circle is

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