Tác giả: DevilKellie

In an A.P., if first term is 4, 9th term is 20, then 15th term is
In an A.P., if first term is 4, 9th term is 20, then 15th term is

Answer (Detailed Solution Below)Concept:Let us consider sequence a1, a2, a3 . an is an A.P.Common difference d= a2 a1 = a3 a2 = . = an an 1nth term of the A.P. is given by an = a + (n 1) dnth ...

How do I autofill in Excel using keyboard?
How do I autofill in Excel using keyboard?

Display AutoComplete listWindows shortcutAltMac shortcutThis shortcut allows you to display various lists within Excel without using a mouse.With Alt + down arrow, you can access lists in 3 different ...

How to get hair oil out of clothes
How to get hair oil out of clothes

No matter the kind of oil, use these methods to remove oil stains from your clothing and stress from your mind.When oil makes its way onto a favorite garment that isnt possible to replace, you may ...