Answer:
can u explain more
Step-by-step explanation:
Answer:
-1.5
Step-by-step explanation:
2 times -1/4 is -0.5. -0.5 times 3 is -1.5
Answer:
D
Step-by-step explanation:
That is where the line meets.
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
