In Triangle ABC ,Angle B=90 and BD perpendicular AC, if AC=9 cm and AD=3 cm then BD is equal to

1. 2√2 cm

2.3√2 cm

3. 2√3 cm

4. 3√3cm

form a quadratic polynomial whose zeroes are 4 and 6

If α and β are the zeros of the quadratic polynomial f(x) = x2 - px + q, prove that a2/b2 + b2/a2 = p4/q2 - 4p2/q + 2

Given thatαandβare the zeroes of the quadratic polynomialf(x) =x^{2}–px+q

how to calculate mode if two classes have same and highest frequency (bimodal) ?

In Triangle ABC ,Angle B=90 and BD perpendicular AC, if AC=9 cm and AD=3 cm then BD is equal to

1. 2√2 cm

2.3√2 cm

3. 2√3 cm

4. 3√3cm

of Rose, Sunflower, Champa and Jasmine respectively as shown in the following figure. A fifth

student Eshan wanted to plant her flower in this area. The teacher instructed Eshan to plant

his flower plant at a point E such that CE: EB = 3 : 2.

Answer the following questions:

i. Find the coordinates of point E where Eshan has to plant his flower plant.

ii. Find the area of ECD.

iii. Find the distance between the plants of Ajay and Deepak.

iv. The distance between A and B is:

v. The distance between C and D is:

form a quadratic polynomial whose zeroes are 4 and 6

If α and β are the zeros of the quadratic polynomial f(x) = x2 - px + q, prove that a2/b2 + b2/a2 = p4/q2 - 4p2/q + 2Given that

αandβare the zeroes of the quadratic polynomialf(x) =x^{2}–px+qIn the given solution how did (a^{2}+ b^{2})^{2}- 2a^{2}b^{2}/ a^{2}b^{2 }changed into [(a + b)^{2}- 2ab ]^{2 }- 2(ab)^{2}/ (ab)^{2}i didnt understand how -2a^{2}b^{2}/ a^{2}b^{2 }change to^{}- 2(ab)^{2}/ (ab)^{2 }bcoz a^{2}b^{2}and (ab)^{2}are two different things. I guess !!i m confused..plzz help...(a) dependent

(b) independent

(c) mutually exclusive

(d) none of these

( with explanation)

triangle respectively. Both of the courts have a common edge that touches the

centre of stadium. The construction of the shooting range is such that the angle

of centre is 60°. The radius of the stadium is 180 meters.

drawing boundaries PQ and RS which are parallel to BC.

Other measurements are as shown in the figure.

i. What is the area of this land?

ii. What is the length of PQ?

iii. The length of RS is

iv. Area of? APQ is?

v. What is the area of? ARS?

how to calculate mode if two classes have same and highest frequency (bimodal) ?