Question

Evaluate : 2 tan45° + cos2 30° - sin? 60°
10. In a circle of radius 21 cm an arc subtends an angle of 60° at the centre. Find the area of
sector formed by the arc.
Or
Find the area of sector of a circle with radius 6 cm, if angle of the sector is 60°
Or
Find the area of the sector of a circle with radius 4 cm and of angle 30°.
11. A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. W
is the probability that the ball drawn is red?
Or
Harpreet tosses two different coins simultaneously (say one is of 31 and other of 2)
is the probability that she gets at least one head?
Or
A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is ta
out of the box at random. What is the probability that the marble taken out will be rec
PART-C
te : Each question is of 4 marks.
12. Find the discriminant of the quadratic equation 2x2 - 6x + 3 = 0 then find the n​

Answer 1

Answer:

hjdsl

Step-by-step explanation:

jdsiisjdjxjxkkdkdkdjdndjdjdjdjdjdkdjdnxndnmddkkdksksjs