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Aug

The distance between (a, 0) and (0, a) is …………..

Soln. Distance = $\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$

Posted in: Examples 1 to 5 of Co–Ordinate Geometry,

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Aug

Examples 6 to 10 of Co–Ordinate Geometry

If the co–ordinates of centroid of Δ ABC with A (4, 2), B (2, 2a) and C (0, 2) are equal, then find the value of a.

Soln. Centroid G =

Posted in: Examples 6 to 10 of Co–Ordinate Geometry,

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Aug

Orthogonal Curves

☼ Orthogonal Curves : If the tangents of both the curves at their point of intersection are perpendicular to each other, then the both curves are called orthogonal curves.

↦ Two circles S : x² + …

Posted in: Orthogonal Curves,

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Aug

Length of a Tangent

☼ Length of a Tangent :–

Two tangents to a circle can be drawn from a point lying in the exterior of the circle.

In this case,

PT₁ = PT₂
PC bisects

Posted in: Length of a Tangent,

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Aug

Tangent

☼ Tangent :–

(i) Equation of a tangent to a circle S : x² + y² = r² at point M ( x₁, y₁ ) is x₁x + y₁y = r². And eq…

Posted in: Tangent,

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Aug

The relation between a circle S

☼ The relation between a circle S : x² + y² + 2gx + 2fy + c = 0 = 0 and a point (x₁, y₁) in its plane :

(i) If

Posted in: The relation between a circle S,

Tags: mathematics, sum, bhai, ganit, dakhla, Mehta, concept, formula, maheta, proof, sutra, classes, theorem, sutr, class, theorems, Examples, education, definition, SUMS, online, definitions, example, tutorial, fundamental, math, educational, basic, Parin, maths, base, sir,