Answer:
First, let's recall some usefull information:
- cot(x) = 1/tg(x) = cos(x)/sin(x)
- tan(x) = sin(x)/cos(x)
We also know that:
- cos(x - pi/2) = sin(x)
- sin(x - pi/2) = -cos(x)
Now we can use those relationships and get:
cot(x - pi/2) = cos(x - pi/2)/sin(x -pi/2) = sin(x)/-cos(x) = -tan(x)
So we have verified the identity, and explained step by step why the identity is true.
Answer:
She made $622.30
Step-by-step explanation:
35 pairs ----- $840
1 pair----------- $24 this is because 840÷35= 24
24- 6.22= 17.78
$17.78 *35 = 622.3
Answer:
1
Step-by-step explanation:
Given function:
y = px² - 4x + q
To find the points of maxima or minima
= 0
or
2px - 4 + 0 = 0
or
px = 2
or
x = [2 ÷ p]
at p = 2
x = 2 ÷ 2 = 1
To check for minima
> 0
thus,
2p - 0 > 0
2p > 0
for positive value of p function is minimum at x = 1
2) at q = 5 also x = 1 as value of x is independent of q
Answer:
it would be, 5x-y=-19
Step-by-step explanation:
Use equation y-y1=m(x-x1)
Answer:
Step-by-step explanation:
24 cats
16 dogs
16:24
/8 to simplify
simplifyied-2:3
