If a function has a tangent at a point $x = a$ , then, it means, it is the critical point of that function and the derivative of the function is zero at that point.
Perform the calculations carefully, to avoid silly mistakes.
One should know how to read a graph to solve such questions.

A cubic polynomial f(x) = ax³ + bx² + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals

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Consider f(x) = |1–x| 1 £ x £ 2 and g(x )= f(x) + b $sin invisible function application fraction numerator pi over denominator 2 end fraction x$ , 1 £ x £ 2 then which of the following is correct?

Maths-General

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Stability of ionic compound is influenced by

Electronegativity Lattice energy Sublimation energy Electron affinity

The correct answer is: Lattice energy

Related Questions to study

The electronegativities of F,Cl,Br and I are 4.0,3.0,2.8,2.5 respectively. The hydrogen halide with a high percentage of ionic character is

The electronegativities of F,Cl,Br and I are 4.0,3.0,2.8,2.5 respectively. The hydrogen halide with a high percentage of ionic character is

The eccentricity of the hyperbola with asymptotes 3x + 4y = 2 and 4x – 3y = 2 is

The eccentricity of the hyperbola with asymptotes 3x + 4y = 2 and 4x – 3y = 2 is

The number of ways that '6' rings can be worn on the 4 - fingers of one hand is

The number of ways that '6' rings can be worn on the 4 - fingers of one hand is

The total number of 8 digited numbers which have all different digits is

The total number of 8 digited numbers which have all different digits is

Which part shows initial velocity of the particle?

Which part shows initial velocity of the particle?

The equation of the ellipse with axes along the x – axis and the y – axis, which passes thro’ the points P (4, 3) and Q (6, 2) is

The equation of the ellipse with axes along the x – axis and the y – axis, which passes thro’ the points P (4, 3) and Q (6, 2) is

Which area shows the displacement covered by the particle after time t.

Which area shows the displacement covered by the particle after time t.

Polarization power of a cation increases when

Polarization power of a cation increases when

Here are the graphs of v→ t of moving body. which of them is not suitable

Here are the graphs of v→ t of moving body. which of them is not suitable

The number of values of c such that st. line y = 4x + c touches the curve is

The number of values of c such that st. line y = 4x + c touches the curve is

Tangents are drawn to the ellipse at the ends of the latus rectum. The are of the quadrilateral so formed is

Tangents are drawn to the ellipse at the ends of the latus rectum. The are of the quadrilateral so formed is

A tangent to the ellipse x2 + 4y2 = 4 meets the ellipse x2 + 2y2 = 6 at P and Q. The angle between the tangents at P and Q of the ellipse x2 + 2y2 = 6 is

A tangent to the ellipse x2 + 4y2 = 4 meets the ellipse x2 + 2y2 = 6 at P and Q. The angle between the tangents at P and Q of the ellipse x2 + 2y2 = 6 is

Here are the graphs of x→ t of moving body. which of them is not suitable?

Here are the graphs of x→ t of moving body. which of them is not suitable?

A cubic polynomial f(x) = ax3 + bx2 + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals

A cubic polynomial f(x) = ax3 + bx2 + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals

Consider f(x) = |1–x| 1 £ x £ 2 and g(x )= f(x) + b , 1 £ x £ 2 then which of the following is correct?

Consider f(x) = |1–x| 1 £ x £ 2 and g(x )= f(x) + b , 1 £ x £ 2 then which of the following is correct?

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Electronegativity
Lattice energy
Sublimation energy
Electron affinity

The number of values of c such that st. line y = 4x + c touches the curve $fraction numerator x to the power of 2 end exponent over denominator 4 end fraction plus y to the power of 2 end exponent equals 1$ is

The number of values of c such that st. line y = 4x + c touches the curve $fraction numerator x to the power of 2 end exponent over denominator 4 end fraction plus y to the power of 2 end exponent equals 1$ is

Tangents are drawn to the ellipse $fraction numerator x to the power of 2 end exponent over denominator 9 end fraction plus fraction numerator y to the power of 2 end exponent over denominator 5 end fraction equals 1$ at the ends of the latus rectum. The are of the quadrilateral so formed is

Tangents are drawn to the ellipse $fraction numerator x to the power of 2 end exponent over denominator 9 end fraction plus fraction numerator y to the power of 2 end exponent over denominator 5 end fraction equals 1$ at the ends of the latus rectum. The are of the quadrilateral so formed is

A tangent to the ellipse x² + 4y² = 4 meets the ellipse x² + 2y² = 6 at P and Q. The angle between the tangents at P and Q of the ellipse x² + 2y² = 6 is

A tangent to the ellipse x² + 4y² = 4 meets the ellipse x² + 2y² = 6 at P and Q. The angle between the tangents at P and Q of the ellipse x² + 2y² = 6 is

A cubic polynomial f(x) = ax³ + bx² + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals

A cubic polynomial f(x) = ax³ + bx² + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals

Consider f(x) = |1–x| 1 £ x £ 2 and g(x )= f(x) + b $sin invisible function application fraction numerator pi over denominator 2 end fraction x$ , 1 £ x £ 2 then which of the following is correct?

Consider f(x) = |1–x| 1 £ x £ 2 and g(x )= f(x) + b $sin invisible function application fraction numerator pi over denominator 2 end fraction x$ , 1 £ x £ 2 then which of the following is correct?