SOLUTION: Can you help me prove the identity:
1+tan^2x=1/cos^2x
I don't understand how to solve this.
Algebra.Com
Question 816479: Can you help me prove the identity:
1+tan^2x=1/cos^2x
I don't understand how to solve this.
Found 2 solutions by lwsshak3, Alan3354:
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Can you help me prove the identity:
1+tan^2x=1/cos^2x
***
..
Start with the left side: (the more complex side)
..
..
..
verified:
left side=right side
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Can you help me prove the identity:
1+tan^2x=1/cos^2x
-------------
1+tan^2x = sec^2
QED
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