Question

1
Answer the following questions:
QI. Find the zero of the polynomial 3x - 1.
1
axis is
Q2. The equation of r-
1
Q3. Mention the co-ordinates of a point from any quadrant, which is at equal distance from
x - axis and y - axis other than the origin (0,0).
2
Q4. Simplify: 7v7 - V252 - 7216-677
2
Q5. Factorise: a5 - a
3
Q6. The angles of a triangle are (x – 40), (x - 20) and (x - 10). Find the
measure of each angles.
5
7
3
and
Q7. Find 5 rational numbers between
12
8
3
4
1
then calculate x + 4.
X
Q8. If x =
3-17
9
09. Draw a rectangle PQRS by plotting the points P(-3,7), Q(-3,-4), R(4, -4) and S(4,7)
on a cartesian plane on a graph paper. Find the area of the rectangle.
3. if anybody will give me this answer I will mark as brain list in 25 minutes​

Answer 1

Step-by-step explanation:

Q1.

3 and 3 will be cancelled and -1 and 1 will be cancelled so the answer will be zero . Hence, proved that 1/3 is the zero of the polynomial 3x - 1 .

Q2

x2+y2=√x2+y2+x

Explanation:

Converting from polar to rectangular form:

x=rcos(θ), y=rsin(θ)

x2+y2=r2→r=√x2+y2

Here our polar equation is: r=1+cos(θ)

Multiply both sides by r→r2=r(1+cos(θ))

∴r2=r+rcos(θ)

Substituting for r,r2andrcos(θ) yields:

x2+y2=√x2+y2+x

Which is our polar equation in rectangular form.

NB: This is the equation of the cardioid below.

graph{ x^2+y^2 =sqrt(x^2+y^2) + x [-1.835, 4.325, -1.478, 1.602]}