Answer:
Option d. 
Step-by-step explanation:
<u><em>The complete question is</em></u>
Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x.
a. tanx=2
b. sinx=2
c. tanx=1/2
d. sinx=1/2
we have

Find the common denominator and adds the fractions

Expanded the numerator

Remember that
----> trigonometric identity
substitute


Factor 2 in the numerator

Simplify


6 is what you're dividing by so it goes on top as the numerator and x + y is the denominator: 
Answer:
b=7
Step-by-step explanation:
3-5b=-32
-5b=-32-3
-5b=-35
Divide both sides by -5
b=7