Sec^2 x - 1 = tan^2x
Proof:
Sec^2x = 1+ tan^2x
1/cos^2x = 1 + sin^2x/cos^2x
<span>1/cos^2x - sin^2x/cos^2x = 1
</span>Using common denominator:
(1-sin^2x)/cos^2x = 1
sin^2x + cos^2 x = 1
cos^2 x = 1 - sin^2x
Substituting :
cos^2x/<span>cos^2x = 1
</span>1 = 1
Left hand side = right hand side
Answer:
PHOTO IS BLACK . SO , I CAN'T ANSWER UR QUESTION
-50x :)
characters bc it has to be 20
Answer:
-21n + 16
Step-by-step explanation:
Start with distributive property
-24n + 16 + 3n
Combine like terms
-21n + 16
There is a part of the equation missing so I can't solve completely
