Answer:
Option 3: 31-5i
Step-by-step explanation:
Simplify the imaginary and real parts separately.
g(x)=√(x+1)
Let's plug 10 in for x
g(10) = √(10+1)
Simplify the exponents
g(10) = √(11)
This is the exact form but it can also be expressed as a decimal.
√(11) = 3.31662479
You can simplify as needed
Sin5x + sin3x = 2sin4x.cosx
cos5x + cos3x = 2cos4x.cosx
so
=
= tan4x