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Find the value of c so …

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Find the value of c so that the line y=3x + c is tangent to the circle x×x + y×y =16
  • 2 answers

Dipens Rajput 8 years, 1 month ago

4/√10

Aashish Kumar 8 years, 1 month ago

Condition of tangency is R=c/√m^2+1 where R is the radius, m is the slope of the line and c is the y-intercept of the line. Putting R=4, m=3 we get c=4√10 units
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