What is the second question? Don’t seem to understand what you’re asking
But the first is
(2sinx-1)(Sinx-1)
Treat it the sinx as you would with normal factorising equations with x. If it helps you, you could always substitute the sinx as a U, and then change it back to sinx once you have factorised it
Answer:
Step-by-step explanation:
If you rolled a die 50 times and got (say) 8 1s, 7 2s, 9 3s, 10 4s, 9 5s and 7 6s, then the empirical probability of a 1 would be 8/50, of a 2 would be 7/50, of a 4 would be 10/50, of a 5 would be 9/50, and of a 6 would be 7/50.
The missing digit is: any odd number from 1-10. Only odd so: 1,3,5,7,9 would work! Hope this helps!! :)
A=2-b
2-b/b=3
2-b=3b
B=1/2
A=3/2
A-b=3/2-1/2=1
Answer is 1