Maths-

#### The equation of the directrix of the conic whose length of the latusrectum is 5 and eccenticity is 1/2 is

Maths-General

#### Answer:The correct answer is:

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### Related Questions to study

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#### The equation of the directrix of the conic is

#### The equation of the directrix of the conic is

maths-General

maths-

#### The castesian equation of is

#### The castesian equation of is

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#### The equation of the circle touching the initial line at pole and radius 2 is

#### The equation of the circle touching the initial line at pole and radius 2 is

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#### The equation of the circle passing through pole and centre at (4,0) is

#### The equation of the circle passing through pole and centre at (4,0) is

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#### The cartesian equation of is

#### The cartesian equation of is

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#### The polar equation of the circle with pole as centre and radius 3 is

#### The polar equation of the circle with pole as centre and radius 3 is

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#### ax^{2} + bx + c = 0 has real and distinct roots null. Further a > 0, b < 0 and c < 0, then –

#### ax^{2} + bx + c = 0 has real and distinct roots null. Further a > 0, b < 0 and c < 0, then –

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#### (Area of GPL) to (Area of ALD) is equal to

#### (Area of GPL) to (Area of ALD) is equal to

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maths-

#### Let p, q {1, 2, 3, 4}. Then number of equation of the form px^{2} + qx + 1 = 0, having real roots, is

#### Let p, q {1, 2, 3, 4}. Then number of equation of the form px^{2} + qx + 1 = 0, having real roots, is

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#### If then the equation whose roots are

#### If then the equation whose roots are

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physics-

#### A small source of sound moves on a circle as shown in the figure and an observer is standing on Let and be the frequencies heard when the source is at and respectively. Then

At point source is moving away from observer so apparent frequency (actual frequency) At point source is coming towards observer so apparent frequency and point source is moving perpendicular to observer so

Hence

Hence

#### A small source of sound moves on a circle as shown in the figure and an observer is standing on Let and be the frequencies heard when the source is at and respectively. Then

physics-General

At point source is moving away from observer so apparent frequency (actual frequency) At point source is coming towards observer so apparent frequency and point source is moving perpendicular to observer so

Hence

Hence

maths-

#### If x, y, z are integers and x 0, y 1, z 2, x + y + z = 15, then the number of values of the ordered triplet (x, y, z) is -

Let y = p + 1 and z = q + 2.

Then x 0, p 0, q 0 and x + y + z = 15

x + p + q = 12

The reqd. number of values of (x, y, z) and hence of (x, p, q)

= No. of non-negative integral solutions of x + p + q= 12

= Coeff. of x

= Coeff. of x

= Coeff. of x

=

Then x 0, p 0, q 0 and x + y + z = 15

x + p + q = 12

The reqd. number of values of (x, y, z) and hence of (x, p, q)

= No. of non-negative integral solutions of x + p + q= 12

= Coeff. of x

^{12}in (x^{0}+ x^{1}+ x^{2}+ ……)^{3}= Coeff. of x

^{12}in (1 – x)^{–3}= Coeff. of x

^{12}in [^{2}C_{0}+^{3}C_{1}x +^{4}C_{2}x^{2}+ ….]=

^{14}C_{12}= = = 91.#### If x, y, z are integers and x 0, y 1, z 2, x + y + z = 15, then the number of values of the ordered triplet (x, y, z) is -

maths-General

Let y = p + 1 and z = q + 2.

Then x 0, p 0, q 0 and x + y + z = 15

x + p + q = 12

The reqd. number of values of (x, y, z) and hence of (x, p, q)

= No. of non-negative integral solutions of x + p + q= 12

= Coeff. of x

= Coeff. of x

= Coeff. of x

=

Then x 0, p 0, q 0 and x + y + z = 15

x + p + q = 12

The reqd. number of values of (x, y, z) and hence of (x, p, q)

= No. of non-negative integral solutions of x + p + q= 12

= Coeff. of x

^{12}in (x^{0}+ x^{1}+ x^{2}+ ……)^{3}= Coeff. of x

^{12}in (1 – x)^{–3}= Coeff. of x

^{12}in [^{2}C_{0}+^{3}C_{1}x +^{4}C_{2}x^{2}+ ….]=

^{14}C_{12}= = = 91.maths-

#### The polar equation of axy is

#### The polar equation of axy is

maths-General

maths-

#### The polar equation of the straight line parallel to the initial line and at a distance of 4 units above the initial line is

#### The polar equation of the straight line parallel to the initial line and at a distance of 4 units above the initial line is

maths-General

maths-

#### The polar equation of the straight line with intercepts 'a' and 'b' on the rays and respectively is

#### The polar equation of the straight line with intercepts 'a' and 'b' on the rays and respectively is

maths-General