Nina will need 3 columns,3 rows and she will use 9 squares in all.
Hope that helped
Answer:
greater then
Step-by-step explanation:
Answer:
7*2=14 8x=8*8=64*2
Step-by-step explanation:
Thats how you basically do it now try it!
Answer:
Step-by-step explanation:
I assume that you mean
sec(x)-tan(x) = 1 / ( sec(x) + tan(x) ) , right ?
then this is equivalent to
[ sec(x) - tan(x) ] x [ sec(x) + tan(x) ] = 1
let s evaluate it, we got
sec2(x) - sec(x)tan(x) + - sec(x)tan(x) - tan2(x) = sec2(x) - tan2(x)
= (1 - sin2(x) ) / cos2(x) = cos2(x) / cos2(x) = 1
as cos2(x) + sin2(x) = 1
