Question

Section - B
21. Prove that:
2
Question numbers 21 to 26 carry 2 marks each.
1
1
= 2 sec20
1+ sin 1-sin
OR
1-tan
Prove that:
= cose-sin20
1 + tane
2
Divide (2x2 - x + 3) by (2 - x) and write the quotient and the remainder.
2
23. In a family of three children, find the probability of having at least two
boys.
2
OR
Two dice are tossed simultaneously. Find the probability of getting
(i) an even number on both dies.
(i) the sum of two numbers more than 9.
2
24. In a lottery, there are 10 prizes and 25 blanks. What is the probability of
getting a prize?
DT​

Answer 1

Answer:

gjjvggjjfgfdgj

Step-by-step explanation:

2@4974=88554