(tanθ + cotθ)² = sec²θ + csc²θ
<u>Expand left side</u>: tan²θ + 2tanθcotθ + cot²θ
<u>Evaluate middle term</u>: 2tanθcotθ =  = 2
 = 2
⇒ tan²θ + 2+ cot²θ
 = tan²θ + 1 + 1 + cot²θ
<u>Apply trig identity:</u>  tan²θ + 1 = sec²θ 
⇒ sec²θ + 1 + cot²θ
<u>Apply trig identity:</u>  1 + cot²θ = csc²θ
⇒ sec²θ + csc²θ
Left side equals Right side so equation is verified
 
        
             
        
        
        
Answer:
4/12 simplified to 1/3.
Step-by-step explanation:
4/16 x 4/3 = 4/12
4/12 = 1/3
 
        
                    
             
        
        
        
Answer:
hola mami estas bien bonita jejejeje
 
        
                    
             
        
        
        
To find the value of a variable you must know the basics of pre-Algebra. 
Example: 
2x+9=39
To find he answer of this you must subtract 9 from both sides 
Then you are left with…
2x=30
Since 2x=30 means 2 times x equals 30
You can divide 2 from both sides to find the answer 
Which is…
x=15