MCQ
$a + i b > c + id$ can be explained only when:
  • A
    $b = 0, c = 0$
  • $b = 0, d = 0$
  • C
    $a = 0, c = 0$
  • D
    $a = 0, d = 0$

Answer

Correct option: B.
$b = 0, d = 0$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Logarithm of $32\root 5 \of 4 $ to the base $2\sqrt 2 $ is
Choose the correct answer. If $x < 5,$ then.
Let a biased coin be tossed 5 times. If the probability of getting 4 heads is equal to the probability of getting 5 heads, then the probability of getting atmost two heads is
What is the value of $\Big(\sin\frac{22.1}{2}+\cos\frac{22.1}{2}\Big)4?$
Consider the following statements : $1) \sim (p\ ∧ q) = \sim p\ ∨ \sim q 2) \sim (p\ ∨ q) = \sim p\ ∧ \sim q 3) \sim (\sim p) = p$ Which of the above statements is/are correct?
$\lim\limits_{\text{x}\rightarrow\infty}\sin\text{x}$ equals:
The circle $x^2+y^2-8 x=0$ and hyperbola $\frac{x^2}{9}-\frac{y^2}{4}=1$ intersect at the points $A$ and $B$

$2.$ Equation of a common tangent with positive slope to the circle as well as to the hyperbola is

$(A)$ $2 x-\sqrt{5} y-20=0$ $(B)$ $2 x-\sqrt{5} y+4=0$

$(C)$ $3 x-4 y+8=0$ $(D)$ $4 x-3 y+4=0$

$2.$ Equation of the circle with $\mathrm{AB}$ as its diameter is

$(A)$ $x^2+y^2-12 x+24=0$ $(B)$ $x^2+y^2+12 x+24=0$

$(C)$ $\mathrm{x}^2+\mathrm{y}^2+24 \mathrm{x}-12=0$ $(D)$ $x^2+y^2-24 x-12=0$

Give hte answer question $1, 2$

If ${\left( {1 + x} \right)^n} = {c_0} + {c_1}x + {c_2}{x^2} + {c_3}{x^3} + ...... + {c_n}{x^n}$ , then the value of ${c_0} - 3{c_1} + 5{c_2} - ........ + {( - 1)^n}\,(2n + 1){c_n}$ is
Statement $1:$ $y = mx - \frac{1}{m}$ is always a tangent to the parabola, $y^2 = - 4x$ for all non-zero values of $m.$

Statement $2:$ Every tangent to the parabola, $y^2 = -4x$ will meet its axis at a point whose abscissa is non-negative.

The number of ways in which $6$ rings can be worn on the four fingers of one hand is