Equalizw the denominators so that the nominators will be equal in this wat sonyou can find the value of x if you want i can solve it
Hi, We know:
Sin(a + b) = 2.Sin(a).Sin(b)
Then,
= 2Sin(a).Cos(b)/Cos(a).Cos(b)
Canceling Cos(b)
= 2Sin(a)/Cos(a)
As Tan(a) = Sin(a)/Cos(a)
Then we will stay:
= 2Tan(a)
Or
= Tan(a) + Tan(a)
There is anything wrong on the alternatives
f(x) means x = -2 if you multiply 1/2 by -2 you get -1
c c a a are the right answers just took it
hi
4 entries are 24 so one entry is 24/4 = 6
so 7 friends pay 6*7 = 42
