Answer:
See Below. 
Step-by-step explanation:
We want to verify the equation: 

To start, we can multiply the fraction by (1 - sin(θ)). This yields:

Simplify. The denominator uses the difference of two squares pattern: 

Recall that sin²(θ) + cos²(θ) = 1. Hence, cos²(θ) = 1 - sin²(θ). Substitute: 

Split into two separate fractions: 

Rewrite the two fractions: 

By definition, 1 / cos(θ) = sec(θ) and sin(θ)/cos(θ) = tan(θ). Hence: 

Hence verified. 
 
        
             
        
        
        
It would be 148 general admissions tickets. If you want the work you can comment.
        
             
        
        
        
<h3>I'll teach you how to solve 8x² = 15 - 14x</h3>
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8x² = 15 - 14x
Add 14x to both sides:
8x^2 +14x =15-14x+14x
Simplify:
8x^2 +14x =15
Subtract 15 from both sides:
8x^2+14x-15 = 15-15
SImplify:
8x^2+14x-15 = 0
Solve with the quadratic formula:
x=  = 3/4
  = 3/4
x=  = -5/2
  = -5/2
The solutions to the quadratic formula are:
x= 3/4, x=-5/2
Your Answer Is x= 3/4, x=-5/2
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