Heyyyy i ain’t a boy but i am a girl in need of help for science ahah
The 20th term in the following arithmetic sequence1/2, 1, 3/2, 2... is 10 because;
the number are divided by 2
and the 20th number would be 20/2 which is equal to 10
Answer:
85
Step-by-step explanation:
Answer:
x² - y² and x^4 - 36
Step-by-step explanation:
(x + y)(x - y)
(x² + 6)(x² - 6)

check your calculator for the [!] factorial button.
also bear in mind that most calculators also have an [ₙPᵣ] button, to get Permuations, and you can just use that.