MCQ
ax + b > 0 is, ___________________?
- Adouble inequality
- Bquadratic inequality
- Cnumerical inequality
- Dlinear inequality
Solution:
Since it has highest power of x ‘1’ and has inequality sign so, it is called linear inequality.
It is not numerical inequality as it does not have numbers on both sides of inequality.
It does not have two inequality signs so it is not double inequality.
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Which of the following is correct for any two complex numbers z1 and z2?
$|\text{z}_1\text{z}_2|=|\text{z}_1||\text{z}_2|$
$\arg(\text{z}_1\text{z}_2)=\arg(\text{z}_1)\cdot\arg(\text{z}_2)$
$|\text{z}_1+\text{z}_2|=|\text{z}_1|+|\text{z}_2|$
$|\text{z}_1+\text{z}_2|\geq|\text{z}_1|-|\text{z}_2|$
Constant term in the expansion of $\Big(\text{x}-\frac{1}{\text{x}}\Big)^{10}$ is:
If a card is drawn from a pack of cards. The probability of getting black ace is: