Answer:
180-33 = 147
Step-by-step explanation:
Sec(x/2) = 1/cos(x/2)
sec(x/2)=cos(x/2) ----> cos^2(x/2)=1 ---> cos(x/2) = -1 and cos(x/2) = 1
Cos(x/2)=1 --- > x/2 = 0, only. x = 0;
cos(x/2)=-1 ----> x/2 = pi -> x = 2pi. But the statement says [0,2pi), so 2pi can not be chosen.
Only x = 0.
In fact, your equation is equivalent to sec(x)=cos(x), for x in [ 0, pi), so yes, only x = 0 .
Answer:
44?
Step-by-step explanation:
27-10=17
17+27=44
Answer:
M(3, 2) and N(3, 1)
Step-by-step explanation:
A rectangle was rotated 270° about the origin.
Since it doesn't mention which direction, we will review both clockwise and anti-clockwise rotation.
See attached where top rectangle represents the pre-image before anti-clockwise and bottom one - before clockwise rotation.
<u>Now let's check the points given:</u>
K(–3, –1)
M(–3, 2)
M(3, 2)
N(–3, 1)
N(3, 1)
So based on correct points of pre-image we can state it was rotation anti-clockwise