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Question Number 135570 by bemath last updated on 14/Mar/21
Geometry If the area of the triangle formed by the positive x-axis, the normal and the tangent to the circle (x-2) ² +(y-3) ² =25 at the point (5,7) is A, then 24A is equal to______?\n
Answered by EDWIN88 last updated on 14/Mar/21
Commented byEDWIN88 last updated on 14/Mar/21
Iguessthequestionareaoftriangleformed byx−axis,tangentandnormalline tangentline:3x+4y=43⇒intersectthe x−axisatG(433,0) normalline:4x−3y=−1⇒intersectthe x−axisatP(−14,0)andintersectthey−axis atR(0,13). theareaoftriangleisA=12.7.(433+14) A=72.(17512)=112524.Therefore 24A=1125
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