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
X<3 I think is your answer
Answer:
63
Step-by-step explanation:
hope it help
Answer:
y = 1/2x
Step-by-step explanation:
Choose two points- I chose (10,5) and (0,0)
Find the slope using y2-y1/x2-x1
Use y - y1 = slope (x -x1) to get your equation
The answer should be y =1/2x
Hopefully this helps- let me know if you have any questions
