MCQ
$1-x^9=(1-x)\left(1+x+x^2\right)$ __________
- A$\left(1-x^3+x^6\right)$
- ✓$\left(1+x^3+x^6\right)$
- C$\left(1-x^3-x^6\right)$
- D$\left(1+x^3-x^6\right)$
✓
Answer
Correct option: B.
$\left(1+x^3+x^6\right)$
B
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In the adjoining figure, $CD =$
→Which point lies on y-axis?
Following data have been arranged in the ascending order.
29, 32, 48, 50, x, x + 2, 72, 78, 84, 95.
If the median of the data is 63, the value of x is :
29, 32, 48, 50, x, x + 2, 72, 78, 84, 95.
If the median of the data is 63, the value of x is :
When written in decimal form, which of the following will be a non-terminating and non-repeating number?
If $\theta$ is an acute angle and $\sin \left(\theta-15^{\circ}\right)=\frac{1}{2}$, then $\cos \left(\theta-15^{\circ}\right)=$
→The runs scored by a cricketer in last 20 innings are given below.
The mean runs of the cricketer per inning is :
| 32 | 17 | 0 | 61 | 17 | 32 | 5 | 17 | 70 | 61 |
| 5 | 17 | 32 | 61 | 5 | 17 | 32 | 70 | 32 | 17 |
If $y+\frac{1}{y}=2$, then $y^5+\frac{1}{y^5}=$
→The lengths of diagonals of a rhombus are 24 cm and 18 cm respectively, length of each side of the rhombus is:
Ramesh wants to get ₹ 6,050 from a bank after 2 years. If the bank gives 10% p.a. compound interest, then the amount of money he has to keep now in the bank is:
A field is in the shape of parallelogram, whose adjacent sides are 120 m and 170 m. If its one diagonal is 250 m, then cost of ploughing the field at ₹ 20 per sq m is :