Question

c) Show that V3 is an irrational number using the method of contradiction (3)
Question 8
a) If 3a+5b+4c=0 then show that 27a'+125b +64c"=180abc
b) Given below are the marks obtained by 30 students in an examination
(3)
08
17
33
23
9
47
29
42
41
19
21
30
18
24
11
20
36
47
14
02
34
48
44
40
22
16
15
32
33
01
Taking class intervals 1-10 11-20... 41-50. Make a frequency table for the above
distribution
(4)
c) If x= = and x+ 5 find x ++
(3)
Question:
a) If a+b+c=29 and a+b+c=9 find ab+bc+ca
(3)
b) The present ages of A and B are in the ratio 9:4. Seven years hence, the ratios of
ages will be 5:3 find their present ages
(3)
c) 1) find (1-(1- (1 - n)-1)]
2) if a' = b.by=c, c?=a prove xyz=1
(4)
Question 10
a) The difference between two positive numbers is 5 and sum of their squares is 73
find the product of those numbers
(3)
b) At what rate of interest per annum will sum of RS 62,500 earn a compound interest
of RS 5.100 in one year? The interest is to be compounded half-yearly
c) if a-5a-1=0 find the following​

Answer 1

Answer:

this question is ❌tooooooooooooooooooo ❌ long