Question

Section-A( 40marks)
Attempt all questions from this section
Question-1
2. draw the graph of: y=2x-1
[3]
b. Factorise : a* - 110+10
[3]
c. If the diagonals of a parallelogram are equal, show that it is a
rectangle.
14
Question2
Evaluate :
cos3A + 2 certa
when A=15
12
sin3A + 25:49
b. If the area of an Equilateral run triangle is 81 V3 cm?, find its
perimeter.
c. Draw a frequency Polygon to represent following data:
C. L.
50 - 54 55 - 59
30-34 35-39 40-44 45 - 49
Frequency 12
20
16
10
8
Question-3
a. Calculate the median or the following frequency distribution:[3]
Variate 3 6 10
12 7 15
Frequency 3 4 2 8 13 10
131
b. Simplif by rationalizing the denominator:
2v3-10
2√3+√2
Solve following pairs of linear equations using cross multiplication
method:
5x - 3y = 2; 4x + 7 = -3
4​

Answer 1

Answer:

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