Answer:
5 4/9
Step-by-step explanation:
9 * 5 = 45
49 - 45 = 4
Answer:
3,312
lets be real who arctually looks at the step by step just use a calculator for this one
Answer:
x=30o+n90on∈Z
Step-by-step explanation:
cos2x=sin(90o−2x)=sin(2x−30o)
Which mean 90o−2x=2x−30o+n360o
or 90o−2x+2x−30o=(2n+1)180o
The later cannot be true.
so x=30o+n90on∈Z
Yes that is true because -3=3 so -3 is less
